21408032

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1$

素因数の和:138

約数の個数: 96

約数和(自身を含む): 48988800

約数和(自身を除く): 27580768

約数列:

[1, 2, 4, 8, 16, 17, 23, 29, 32, 34, 46, 58, 59, 68, 92, 116, 118, 136, 184, 232, 236, 272, 368, 391, 464, 472, 493, 544, 667, 736, 782, 928, 944, 986, 1003, 1334, 1357, 1564, 1711, 1888, 1972, 2006, 2668, 2714, 3128, 3422, 3944, 4012, 5336, 5428, 6256, 6844, 7888, 8024, 10672, 10856, 11339, 12512, 13688, 15776, 16048, 21344, 21712, 22678, 23069, 27376, 29087, 32096, 39353, 43424, 45356, 46138, 54752, 58174, 78706, 90712, 92276, 116348, 157412, 181424, 184552, 232696, 314824, 362848, 369104, 465392, 629648, 669001, 738208, 930784, 1259296, 1338002, 2676004, 5352008, 10704016, 21408032]

約数ペア:

[(1, 21408032), (2, 10704016), (4, 5352008), (8, 2676004), (16, 1338002), (17, 1259296), (23, 930784), (29, 738208), (32, 669001), (34, 629648), (46, 465392), (58, 369104), (59, 362848), (68, 314824), (92, 232696), (116, 184552), (118, 181424), (136, 157412), (184, 116348), (232, 92276), (236, 90712), (272, 78706), (368, 58174), (391, 54752), (464, 46138), (472, 45356), (493, 43424), (544, 39353), (667, 32096), (736, 29087), (782, 27376), (928, 23069), (944, 22678), (986, 21712), (1003, 21344), (1334, 16048), (1357, 15776), (1564, 13688), (1711, 12512), (1888, 11339), (1972, 10856), (2006, 10672), (2668, 8024), (2714, 7888), (3128, 6844), (3422, 6256), (3944, 5428), (4012, 5336)]