21987336

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{4513}}^1$

素因数の和:4558

約数の個数: 64

約数和(自身を含む): 65001600

約数和(自身を除く): 43014264

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 29, 42, 56, 58, 84, 87, 116, 168, 174, 203, 232, 348, 406, 609, 696, 812, 1218, 1624, 2436, 4513, 4872, 9026, 13539, 18052, 27078, 31591, 36104, 54156, 63182, 94773, 108312, 126364, 130877, 189546, 252728, 261754, 379092, 392631, 523508, 758184, 785262, 916139, 1047016, 1570524, 1832278, 2748417, 3141048, 3664556, 5496834, 7329112, 10993668, 21987336]

約数ペア:

[(1, 21987336), (2, 10993668), (3, 7329112), (4, 5496834), (6, 3664556), (7, 3141048), (8, 2748417), (12, 1832278), (14, 1570524), (21, 1047016), (24, 916139), (28, 785262), (29, 758184), (42, 523508), (56, 392631), (58, 379092), (84, 261754), (87, 252728), (116, 189546), (168, 130877), (174, 126364), (203, 108312), (232, 94773), (348, 63182), (406, 54156), (609, 36104), (696, 31591), (812, 27078), (1218, 18052), (1624, 13539), (2436, 9026), (4513, 4872)]