21215208

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{3413}}^1$

素因数の和:3466

約数の個数: 64

約数和(自身を含む): 62271360

約数和(自身を除く): 41056152

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 37, 42, 56, 74, 84, 111, 148, 168, 222, 259, 296, 444, 518, 777, 888, 1036, 1554, 2072, 3108, 3413, 6216, 6826, 10239, 13652, 20478, 23891, 27304, 40956, 47782, 71673, 81912, 95564, 126281, 143346, 191128, 252562, 286692, 378843, 505124, 573384, 757686, 883967, 1010248, 1515372, 1767934, 2651901, 3030744, 3535868, 5303802, 7071736, 10607604, 21215208]

約数ペア:

[(1, 21215208), (2, 10607604), (3, 7071736), (4, 5303802), (6, 3535868), (7, 3030744), (8, 2651901), (12, 1767934), (14, 1515372), (21, 1010248), (24, 883967), (28, 757686), (37, 573384), (42, 505124), (56, 378843), (74, 286692), (84, 252562), (111, 191128), (148, 143346), (168, 126281), (222, 95564), (259, 81912), (296, 71673), (444, 47782), (518, 40956), (777, 27304), (888, 23891), (1036, 20478), (1554, 13652), (2072, 10239), (3108, 6826), (3413, 6216)]