21863864

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{4073}}^1$

素因数の和:4151

約数の個数: 32

約数和(自身を含む): 45465840

約数和(自身を除く): 23601976

約数列:

[1, 2, 4, 8, 11, 22, 44, 61, 88, 122, 244, 488, 671, 1342, 2684, 4073, 5368, 8146, 16292, 32584, 44803, 89606, 179212, 248453, 358424, 496906, 993812, 1987624, 2732983, 5465966, 10931932, 21863864]

約数ペア:

[(1, 21863864), (2, 10931932), (4, 5465966), (8, 2732983), (11, 1987624), (22, 993812), (44, 496906), (61, 358424), (88, 248453), (122, 179212), (244, 89606), (488, 44803), (671, 32584), (1342, 16292), (2684, 8146), (4073, 5368)]