20654928

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{661}}^1$

素因数の和:713

約数の個数: 120

約数和(自身を含む): 68297216

約数和(自身を除く): 47642288

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 31, 36, 42, 48, 56, 62, 63, 72, 84, 93, 112, 124, 126, 144, 168, 186, 217, 248, 252, 279, 336, 372, 434, 496, 504, 558, 651, 661, 744, 868, 1008, 1116, 1302, 1322, 1488, 1736, 1953, 1983, 2232, 2604, 2644, 3472, 3906, 3966, 4464, 4627, 5208, 5288, 5949, 7812, 7932, 9254, 10416, 10576, 11898, 13881, 15624, 15864, 18508, 20491, 23796, 27762, 31248, 31728, 37016, 40982, 41643, 47592, 55524, 61473, 74032, 81964, 83286, 95184, 111048, 122946, 143437, 163928, 166572, 184419, 222096, 245892, 286874, 327856, 333144, 368838, 430311, 491784, 573748, 666288, 737676, 860622, 983568, 1147496, 1290933, 1475352, 1721244, 2294992, 2581866, 2950704, 3442488, 5163732, 6884976, 10327464, 20654928]

約数ペア:

[(1, 20654928), (2, 10327464), (3, 6884976), (4, 5163732), (6, 3442488), (7, 2950704), (8, 2581866), (9, 2294992), (12, 1721244), (14, 1475352), (16, 1290933), (18, 1147496), (21, 983568), (24, 860622), (28, 737676), (31, 666288), (36, 573748), (42, 491784), (48, 430311), (56, 368838), (62, 333144), (63, 327856), (72, 286874), (84, 245892), (93, 222096), (112, 184419), (124, 166572), (126, 163928), (144, 143437), (168, 122946), (186, 111048), (217, 95184), (248, 83286), (252, 81964), (279, 74032), (336, 61473), (372, 55524), (434, 47592), (496, 41643), (504, 40982), (558, 37016), (651, 31728), (661, 31248), (744, 27762), (868, 23796), (1008, 20491), (1116, 18508), (1302, 15864), (1322, 15624), (1488, 13881), (1736, 11898), (1953, 10576), (1983, 10416), (2232, 9254), (2604, 7932), (2644, 7812), (3472, 5949), (3906, 5288), (3966, 5208), (4464, 4627)]