19893988

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{599}}^1$

素因数の和:664

約数の個数: 36

約数和(自身を含む): 38404800

約数和(自身を除く): 18510812

約数列:

[1, 2, 4, 19, 23, 38, 46, 76, 92, 361, 437, 599, 722, 874, 1198, 1444, 1748, 2396, 8303, 11381, 13777, 16606, 22762, 27554, 33212, 45524, 55108, 216239, 261763, 432478, 523526, 864956, 1047052, 4973497, 9946994, 19893988]

約数ペア:

[(1, 19893988), (2, 9946994), (4, 4973497), (19, 1047052), (23, 864956), (38, 523526), (46, 432478), (76, 261763), (92, 216239), (361, 55108), (437, 45524), (599, 33212), (722, 27554), (874, 22762), (1198, 16606), (1444, 13777), (1748, 11381), (2396, 8303)]