19815964

素因数分解:

$2^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{6871}}^1$

素因数の和:6985

約数の個数: 24

約数和(自身を含む): 40022528

約数和(自身を除く): 20206564

約数列:

[1, 2, 4, 7, 14, 28, 103, 206, 412, 721, 1442, 2884, 6871, 13742, 27484, 48097, 96194, 192388, 707713, 1415426, 2830852, 4953991, 9907982, 19815964]

約数ペア:

[(1, 19815964), (2, 9907982), (4, 4953991), (7, 2830852), (14, 1415426), (28, 707713), (103, 192388), (206, 96194), (412, 48097), (721, 27484), (1442, 13742), (2884, 6871)]