21029220

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{4327}}^1$

素因数の和:4351

約数の個数: 72

約数和(自身を含む): 66166464

約数和(自身を除く): 45137244

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 540, 810, 972, 1215, 1620, 2430, 4327, 4860, 8654, 12981, 17308, 21635, 25962, 38943, 43270, 51924, 64905, 77886, 86540, 116829, 129810, 155772, 194715, 233658, 259620, 350487, 389430, 467316, 584145, 700974, 778860, 1051461, 1168290, 1401948, 1752435, 2102922, 2336580, 3504870, 4205844, 5257305, 7009740, 10514610, 21029220]

約数ペア:

[(1, 21029220), (2, 10514610), (3, 7009740), (4, 5257305), (5, 4205844), (6, 3504870), (9, 2336580), (10, 2102922), (12, 1752435), (15, 1401948), (18, 1168290), (20, 1051461), (27, 778860), (30, 700974), (36, 584145), (45, 467316), (54, 389430), (60, 350487), (81, 259620), (90, 233658), (108, 194715), (135, 155772), (162, 129810), (180, 116829), (243, 86540), (270, 77886), (324, 64905), (405, 51924), (486, 43270), (540, 38943), (810, 25962), (972, 21635), (1215, 17308), (1620, 12981), (2430, 8654), (4327, 4860)]