19876945

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{827}}^1$

素因数の和:885

約数の個数: 32

約数和(自身を含む): 28615680

約数和(自身を除く): 8738735

約数列:

[1, 5, 11, 19, 23, 55, 95, 115, 209, 253, 437, 827, 1045, 1265, 2185, 4135, 4807, 9097, 15713, 19021, 24035, 45485, 78565, 95105, 172843, 209231, 361399, 864215, 1046155, 1806995, 3975389, 19876945]

約数ペア:

[(1, 19876945), (5, 3975389), (11, 1806995), (19, 1046155), (23, 864215), (55, 361399), (95, 209231), (115, 172843), (209, 95105), (253, 78565), (437, 45485), (827, 24035), (1045, 19021), (1265, 15713), (2185, 9097), (4135, 4807)]