21009736

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{238747}}^1$

素因数の和:238764

約数の個数: 16

約数和(自身を含む): 42974640

約数和(自身を除く): 21964904

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 238747, 477494, 954988, 1909976, 2626217, 5252434, 10504868, 21009736]

約数ペア:

[(1, 21009736), (2, 10504868), (4, 5252434), (8, 2626217), (11, 1909976), (22, 954988), (44, 477494), (88, 238747)]