21297296

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{21821}}^1$

素因数の和:21890

約数の個数: 20

約数和(自身を含む): 41941884

約数和(自身を除く): 20644588

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 21821, 43642, 87284, 174568, 349136, 1331081, 2662162, 5324324, 10648648, 21297296]

約数ペア:

[(1, 21297296), (2, 10648648), (4, 5324324), (8, 2662162), (16, 1331081), (61, 349136), (122, 174568), (244, 87284), (488, 43642), (976, 21821)]