18961328

素因数分解:

$2^4\times {\mathrm{271}}^1\times {\mathrm{4373}}^1$

素因数の和:4652

約数の個数: 20

約数和(自身を含む): 36881568

約数和(自身を除く): 17920240

約数列:

[1, 2, 4, 8, 16, 271, 542, 1084, 2168, 4336, 4373, 8746, 17492, 34984, 69968, 1185083, 2370166, 4740332, 9480664, 18961328]

約数ペア:

[(1, 18961328), (2, 9480664), (4, 4740332), (8, 2370166), (16, 1185083), (271, 69968), (542, 34984), (1084, 17492), (2168, 8746), (4336, 4373)]