19710890

素因数分解:

$2^1\times 5^1\times {\mathrm{1181}}^1\times {\mathrm{1669}}^1$

素因数の和:2857

約数の個数: 16

約数和(自身を含む): 35530920

約数和(自身を除く): 15820030

約数列:

[1, 2, 5, 10, 1181, 1669, 2362, 3338, 5905, 8345, 11810, 16690, 1971089, 3942178, 9855445, 19710890]

約数ペア:

[(1, 19710890), (2, 9855445), (5, 3942178), (10, 1971089), (1181, 16690), (1669, 11810), (2362, 8345), (3338, 5905)]