21967660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{7681}}^1$

素因数の和:7714

約数の個数: 48

約数和(自身を含む): 54204192

約数和(自身を除く): 32236532

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 7681, 15362, 30724, 38405, 76810, 84491, 99853, 153620, 168982, 199706, 337964, 399412, 422455, 499265, 844910, 998530, 1098383, 1689820, 1997060, 2196766, 4393532, 5491915, 10983830, 21967660]

約数ペア:

[(1, 21967660), (2, 10983830), (4, 5491915), (5, 4393532), (10, 2196766), (11, 1997060), (13, 1689820), (20, 1098383), (22, 998530), (26, 844910), (44, 499265), (52, 422455), (55, 399412), (65, 337964), (110, 199706), (130, 168982), (143, 153620), (220, 99853), (260, 84491), (286, 76810), (572, 38405), (715, 30724), (1430, 15362), (2860, 7681)]