21771984

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:125

約数の個数: 160

約数和(自身を含む): 66495744

約数和(自身を除く): 44723760

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 23, 24, 26, 37, 39, 41, 46, 48, 52, 69, 74, 78, 82, 92, 104, 111, 123, 138, 148, 156, 164, 184, 208, 222, 246, 276, 296, 299, 312, 328, 368, 444, 481, 492, 533, 552, 592, 598, 624, 656, 851, 888, 897, 943, 962, 984, 1066, 1104, 1196, 1443, 1517, 1599, 1702, 1776, 1794, 1886, 1924, 1968, 2132, 2392, 2553, 2829, 2886, 3034, 3198, 3404, 3588, 3772, 3848, 4264, 4551, 4784, 5106, 5658, 5772, 6068, 6396, 6808, 7176, 7544, 7696, 8528, 9102, 10212, 11063, 11316, 11544, 12136, 12259, 12792, 13616, 14352, 15088, 18204, 19721, 20424, 22126, 22632, 23088, 24272, 24518, 25584, 33189, 34891, 36408, 36777, 39442, 40848, 44252, 45264, 49036, 59163, 66378, 69782, 72816, 73554, 78884, 88504, 98072, 104673, 118326, 132756, 139564, 147108, 157768, 177008, 196144, 209346, 236652, 265512, 279128, 294216, 315536, 418692, 453583, 473304, 531024, 558256, 588432, 837384, 907166, 946608, 1360749, 1674768, 1814332, 2721498, 3628664, 5442996, 7257328, 10885992, 21771984]

約数ペア:

[(1, 21771984), (2, 10885992), (3, 7257328), (4, 5442996), (6, 3628664), (8, 2721498), (12, 1814332), (13, 1674768), (16, 1360749), (23, 946608), (24, 907166), (26, 837384), (37, 588432), (39, 558256), (41, 531024), (46, 473304), (48, 453583), (52, 418692), (69, 315536), (74, 294216), (78, 279128), (82, 265512), (92, 236652), (104, 209346), (111, 196144), (123, 177008), (138, 157768), (148, 147108), (156, 139564), (164, 132756), (184, 118326), (208, 104673), (222, 98072), (246, 88504), (276, 78884), (296, 73554), (299, 72816), (312, 69782), (328, 66378), (368, 59163), (444, 49036), (481, 45264), (492, 44252), (533, 40848), (552, 39442), (592, 36777), (598, 36408), (624, 34891), (656, 33189), (851, 25584), (888, 24518), (897, 24272), (943, 23088), (962, 22632), (984, 22126), (1066, 20424), (1104, 19721), (1196, 18204), (1443, 15088), (1517, 14352), (1599, 13616), (1702, 12792), (1776, 12259), (1794, 12136), (1886, 11544), (1924, 11316), (1968, 11063), (2132, 10212), (2392, 9102), (2553, 8528), (2829, 7696), (2886, 7544), (3034, 7176), (3198, 6808), (3404, 6396), (3588, 6068), (3772, 5772), (3848, 5658), (4264, 5106), (4551, 4784)]