21290147272

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{1109}}^1\times {\mathrm{55807}}^1$

素因数の和:56965

約数の個数: 32

約数和(自身を含む): 40884940800

約数和(自身を除く): 19594793528

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 1109, 2218, 4436, 8872, 47687, 55807, 95374, 111614, 190748, 223228, 381496, 446456, 2399701, 4799402, 9598804, 19197608, 61889963, 123779926, 247559852, 495119704, 2661268409, 5322536818, 10645073636, 21290147272]

約数ペア:

[(1, 21290147272), (2, 10645073636), (4, 5322536818), (8, 2661268409), (43, 495119704), (86, 247559852), (172, 123779926), (344, 61889963), (1109, 19197608), (2218, 9598804), (4436, 4799402), (8872, 2399701), (47687, 446456), (55807, 381496), (95374, 223228), (111614, 190748)]