21387882

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{1151}}^1$

素因数の和:1338

約数の個数: 32

約数和(自身を含む): 45342720

約数和(自身を除く): 23954838

約数列:

[1, 2, 3, 6, 19, 38, 57, 114, 163, 326, 489, 978, 1151, 2302, 3097, 3453, 6194, 6906, 9291, 18582, 21869, 43738, 65607, 131214, 187613, 375226, 562839, 1125678, 3564647, 7129294, 10693941, 21387882]

約数ペア:

[(1, 21387882), (2, 10693941), (3, 7129294), (6, 3564647), (19, 1125678), (38, 562839), (57, 375226), (114, 187613), (163, 131214), (326, 65607), (489, 43738), (978, 21869), (1151, 18582), (2302, 9291), (3097, 6906), (3453, 6194)]