19667704

素因数分解:

$2^3\times 7^1\times {\mathrm{157}}^1\times {\mathrm{2237}}^1$

素因数の和:2407

約数の個数: 32

約数和(自身を含む): 42432480

約数和(自身を除く): 22764776

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 157, 314, 628, 1099, 1256, 2198, 2237, 4396, 4474, 8792, 8948, 15659, 17896, 31318, 62636, 125272, 351209, 702418, 1404836, 2458463, 2809672, 4916926, 9833852, 19667704]

約数ペア:

[(1, 19667704), (2, 9833852), (4, 4916926), (7, 2809672), (8, 2458463), (14, 1404836), (28, 702418), (56, 351209), (157, 125272), (314, 62636), (628, 31318), (1099, 17896), (1256, 15659), (2198, 8948), (2237, 8792), (4396, 4474)]