21583660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{6703}}^1$

素因数の和:6742

約数の個数: 48

約数和(自身を含む): 54061056

約数和(自身を除く): 32477396

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 6703, 13406, 26812, 33515, 46921, 67030, 93842, 134060, 154169, 187684, 234605, 308338, 469210, 616676, 770845, 938420, 1079183, 1541690, 2158366, 3083380, 4316732, 5395915, 10791830, 21583660]

約数ペア:

[(1, 21583660), (2, 10791830), (4, 5395915), (5, 4316732), (7, 3083380), (10, 2158366), (14, 1541690), (20, 1079183), (23, 938420), (28, 770845), (35, 616676), (46, 469210), (70, 308338), (92, 234605), (115, 187684), (140, 154169), (161, 134060), (230, 93842), (322, 67030), (460, 46921), (644, 33515), (805, 26812), (1610, 13406), (3220, 6703)]