21568428

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{12227}}^1$

素因数の和:12251

約数の個数: 54

約数和(自身を含む): 63426636

約数和(自身を除く): 41858208

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 126, 147, 196, 252, 294, 441, 588, 882, 1764, 12227, 24454, 36681, 48908, 73362, 85589, 110043, 146724, 171178, 220086, 256767, 342356, 440172, 513534, 599123, 770301, 1027068, 1198246, 1540602, 1797369, 2396492, 3081204, 3594738, 5392107, 7189476, 10784214, 21568428]

約数ペア:

[(1, 21568428), (2, 10784214), (3, 7189476), (4, 5392107), (6, 3594738), (7, 3081204), (9, 2396492), (12, 1797369), (14, 1540602), (18, 1198246), (21, 1027068), (28, 770301), (36, 599123), (42, 513534), (49, 440172), (63, 342356), (84, 256767), (98, 220086), (126, 171178), (147, 146724), (196, 110043), (252, 85589), (294, 73362), (441, 48908), (588, 36681), (882, 24454), (1764, 12227)]