18986792

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{359}}^1\times {\mathrm{601}}^1$

素因数の和:977

約数の個数: 32

約数和(自身を含む): 39009600

約数和(自身を除く): 20022808

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 359, 601, 718, 1202, 1436, 2404, 2872, 3949, 4808, 6611, 7898, 13222, 15796, 26444, 31592, 52888, 215759, 431518, 863036, 1726072, 2373349, 4746698, 9493396, 18986792]

約数ペア:

[(1, 18986792), (2, 9493396), (4, 4746698), (8, 2373349), (11, 1726072), (22, 863036), (44, 431518), (88, 215759), (359, 52888), (601, 31592), (718, 26444), (1202, 15796), (1436, 13222), (2404, 7898), (2872, 6611), (3949, 4808)]