21197640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{10391}}^1$

素因数の和:10422

約数の個数: 64

約数和(自身を含む): 67340160

約数和(自身を除く): 46142520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 10391, 20782, 31173, 41564, 51955, 62346, 83128, 103910, 124692, 155865, 176647, 207820, 249384, 311730, 353294, 415640, 529941, 623460, 706588, 883235, 1059882, 1246920, 1413176, 1766470, 2119764, 2649705, 3532940, 4239528, 5299410, 7065880, 10598820, 21197640]

約数ペア:

[(1, 21197640), (2, 10598820), (3, 7065880), (4, 5299410), (5, 4239528), (6, 3532940), (8, 2649705), (10, 2119764), (12, 1766470), (15, 1413176), (17, 1246920), (20, 1059882), (24, 883235), (30, 706588), (34, 623460), (40, 529941), (51, 415640), (60, 353294), (68, 311730), (85, 249384), (102, 207820), (120, 176647), (136, 155865), (170, 124692), (204, 103910), (255, 83128), (340, 62346), (408, 51955), (510, 41564), (680, 31173), (1020, 20782), (2040, 10391)]