21267176

素因数分解:

$2^3\times 7^2\times {\mathrm{227}}^1\times {\mathrm{239}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 46785600

約数和(自身を除く): 25518424

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 227, 239, 392, 454, 478, 908, 956, 1589, 1673, 1816, 1912, 3178, 3346, 6356, 6692, 11123, 11711, 12712, 13384, 22246, 23422, 44492, 46844, 54253, 88984, 93688, 108506, 217012, 379771, 434024, 759542, 1519084, 2658397, 3038168, 5316794, 10633588, 21267176]

約数ペア:

[(1, 21267176), (2, 10633588), (4, 5316794), (7, 3038168), (8, 2658397), (14, 1519084), (28, 759542), (49, 434024), (56, 379771), (98, 217012), (196, 108506), (227, 93688), (239, 88984), (392, 54253), (454, 46844), (478, 44492), (908, 23422), (956, 22246), (1589, 13384), (1673, 12712), (1816, 11711), (1912, 11123), (3178, 6692), (3346, 6356)]