21747476

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{4691}}^1$

素因数の和:4775

約数の個数: 24

約数和(自身を含む): 40726560

約数和(自身を除く): 18979084

約数列:

[1, 2, 4, 19, 38, 61, 76, 122, 244, 1159, 2318, 4636, 4691, 9382, 18764, 89129, 178258, 286151, 356516, 572302, 1144604, 5436869, 10873738, 21747476]

約数ペア:

[(1, 21747476), (2, 10873738), (4, 5436869), (19, 1144604), (38, 572302), (61, 356516), (76, 286151), (122, 178258), (244, 89129), (1159, 18764), (2318, 9382), (4636, 4691)]