21876140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{7649}}^1$

素因数の和:7682

約数の個数: 48

約数和(自身を含む): 53978400

約数和(自身を除く): 32102260

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, 7649, 15298, 30596, 38245, 76490, 84139, 99437, 152980, 168278, 198874, 336556, 397748, 420695, 497185, 841390, 994370, 1093807, 1682780, 1988740, 2187614, 4375228, 5469035, 10938070, 21876140]

約数ペア:

[(1, 21876140), (2, 10938070), (4, 5469035), (5, 4375228), (10, 2187614), (11, 1988740), (13, 1682780), (20, 1093807), (22, 994370), (26, 841390), (44, 497185), (52, 420695), (55, 397748), (65, 336556), (110, 198874), (130, 168278), (143, 152980), (220, 99437), (260, 84139), (286, 76490), (572, 38245), (715, 30596), (1430, 15298), (2860, 7649)]