21108840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{3319}}^1$

素因数の和:3386

約数の個数: 64

約数和(自身を含む): 64540800

約数和(自身を除く): 43431960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 53, 60, 106, 120, 159, 212, 265, 318, 424, 530, 636, 795, 1060, 1272, 1590, 2120, 3180, 3319, 6360, 6638, 9957, 13276, 16595, 19914, 26552, 33190, 39828, 49785, 66380, 79656, 99570, 132760, 175907, 199140, 351814, 398280, 527721, 703628, 879535, 1055442, 1407256, 1759070, 2110884, 2638605, 3518140, 4221768, 5277210, 7036280, 10554420, 21108840]

約数ペア:

[(1, 21108840), (2, 10554420), (3, 7036280), (4, 5277210), (5, 4221768), (6, 3518140), (8, 2638605), (10, 2110884), (12, 1759070), (15, 1407256), (20, 1055442), (24, 879535), (30, 703628), (40, 527721), (53, 398280), (60, 351814), (106, 199140), (120, 175907), (159, 132760), (212, 99570), (265, 79656), (318, 66380), (424, 49785), (530, 39828), (636, 33190), (795, 26552), (1060, 19914), (1272, 16595), (1590, 13276), (2120, 9957), (3180, 6638), (3319, 6360)]