21896408

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{233}}^1\times {\mathrm{691}}^1$

素因数の和:947

約数の個数: 32

約数和(自身を含む): 43720560

約数和(自身を除く): 21824152

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 233, 466, 691, 932, 1382, 1864, 2764, 3961, 5528, 7922, 11747, 15844, 23494, 31688, 46988, 93976, 161003, 322006, 644012, 1288024, 2737051, 5474102, 10948204, 21896408]

約数ペア:

[(1, 21896408), (2, 10948204), (4, 5474102), (8, 2737051), (17, 1288024), (34, 644012), (68, 322006), (136, 161003), (233, 93976), (466, 46988), (691, 31688), (932, 23494), (1382, 15844), (1864, 11747), (2764, 7922), (3961, 5528)]