21160256

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{877}}^1$

素因数の和:931

約数の個数: 56

約数和(自身を含む): 46832520

約数和(自身を除く): 25672264

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 32, 52, 58, 64, 104, 116, 208, 232, 377, 416, 464, 754, 832, 877, 928, 1508, 1754, 1856, 3016, 3508, 6032, 7016, 11401, 12064, 14032, 22802, 24128, 25433, 28064, 45604, 50866, 56128, 91208, 101732, 182416, 203464, 330629, 364832, 406928, 661258, 729664, 813856, 1322516, 1627712, 2645032, 5290064, 10580128, 21160256]

約数ペア:

[(1, 21160256), (2, 10580128), (4, 5290064), (8, 2645032), (13, 1627712), (16, 1322516), (26, 813856), (29, 729664), (32, 661258), (52, 406928), (58, 364832), (64, 330629), (104, 203464), (116, 182416), (208, 101732), (232, 91208), (377, 56128), (416, 50866), (464, 45604), (754, 28064), (832, 25433), (877, 24128), (928, 22802), (1508, 14032), (1754, 12064), (1856, 11401), (3016, 7016), (3508, 6032)]