18487791

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4253}}^1$

素因数の和:4292

約数の個数: 32

約数和(自身を含む): 32670720

約数和(自身を除く): 14182929

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 161, 189, 207, 483, 621, 1449, 4253, 4347, 12759, 29771, 38277, 89313, 97819, 114831, 267939, 293457, 684733, 803817, 880371, 2054199, 2641113, 6162597, 18487791]

約数ペア:

[(1, 18487791), (3, 6162597), (7, 2641113), (9, 2054199), (21, 880371), (23, 803817), (27, 684733), (63, 293457), (69, 267939), (161, 114831), (189, 97819), (207, 89313), (483, 38277), (621, 29771), (1449, 12759), (4253, 4347)]