18487935

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{457}}^1$

素因数の和:528

約数の個数: 48

約数和(自身を含む): 34295040

約数和(自身を除く): 15807105

約数列:

[1, 3, 5, 9, 15, 29, 31, 45, 87, 93, 145, 155, 261, 279, 435, 457, 465, 899, 1305, 1371, 1395, 2285, 2697, 4113, 4495, 6855, 8091, 13253, 13485, 14167, 20565, 39759, 40455, 42501, 66265, 70835, 119277, 127503, 198795, 212505, 410843, 596385, 637515, 1232529, 2054215, 3697587, 6162645, 18487935]

約数ペア:

[(1, 18487935), (3, 6162645), (5, 3697587), (9, 2054215), (15, 1232529), (29, 637515), (31, 596385), (45, 410843), (87, 212505), (93, 198795), (145, 127503), (155, 119277), (261, 70835), (279, 66265), (435, 42501), (457, 40455), (465, 39759), (899, 20565), (1305, 14167), (1371, 13485), (1395, 13253), (2285, 8091), (2697, 6855), (4113, 4495)]