21499218

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1163}}^1$

素因数の和:1263

約数の個数: 48

約数和(自身を含む): 50843520

約数和(自身を除く): 29344302

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 79, 117, 158, 234, 237, 474, 711, 1027, 1163, 1422, 2054, 2326, 3081, 3489, 6162, 6978, 9243, 10467, 15119, 18486, 20934, 30238, 45357, 90714, 91877, 136071, 183754, 272142, 275631, 551262, 826893, 1194401, 1653786, 2388802, 3583203, 7166406, 10749609, 21499218]

約数ペア:

[(1, 21499218), (2, 10749609), (3, 7166406), (6, 3583203), (9, 2388802), (13, 1653786), (18, 1194401), (26, 826893), (39, 551262), (78, 275631), (79, 272142), (117, 183754), (158, 136071), (234, 91877), (237, 90714), (474, 45357), (711, 30238), (1027, 20934), (1163, 18486), (1422, 15119), (2054, 10467), (2326, 9243), (3081, 6978), (3489, 6162)]