21186726

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{821}}^1$

素因数の和:877

約数の個数: 64

約数和(自身を含む): 51134976

約数和(自身を除く): 29948250

約数列:

[1, 2, 3, 6, 11, 17, 22, 23, 33, 34, 46, 51, 66, 69, 102, 138, 187, 253, 374, 391, 506, 561, 759, 782, 821, 1122, 1173, 1518, 1642, 2346, 2463, 4301, 4926, 8602, 9031, 12903, 13957, 18062, 18883, 25806, 27093, 27914, 37766, 41871, 54186, 56649, 83742, 113298, 153527, 207713, 307054, 321011, 415426, 460581, 623139, 642022, 921162, 963033, 1246278, 1926066, 3531121, 7062242, 10593363, 21186726]

約数ペア:

[(1, 21186726), (2, 10593363), (3, 7062242), (6, 3531121), (11, 1926066), (17, 1246278), (22, 963033), (23, 921162), (33, 642022), (34, 623139), (46, 460581), (51, 415426), (66, 321011), (69, 307054), (102, 207713), (138, 153527), (187, 113298), (253, 83742), (374, 56649), (391, 54186), (506, 41871), (561, 37766), (759, 27914), (782, 27093), (821, 25806), (1122, 18883), (1173, 18062), (1518, 13957), (1642, 12903), (2346, 9031), (2463, 8602), (4301, 4926)]