21539028

素因数分解:

$2^2\times 3^1\times 7^3\times {\mathrm{5233}}^1$

素因数の和:5261

約数の個数: 48

約数和(自身を含む): 58620800

約数和(自身を除く): 37081772

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 294, 343, 588, 686, 1029, 1372, 2058, 4116, 5233, 10466, 15699, 20932, 31398, 36631, 62796, 73262, 109893, 146524, 219786, 256417, 439572, 512834, 769251, 1025668, 1538502, 1794919, 3077004, 3589838, 5384757, 7179676, 10769514, 21539028]

約数ペア:

[(1, 21539028), (2, 10769514), (3, 7179676), (4, 5384757), (6, 3589838), (7, 3077004), (12, 1794919), (14, 1538502), (21, 1025668), (28, 769251), (42, 512834), (49, 439572), (84, 256417), (98, 219786), (147, 146524), (196, 109893), (294, 73262), (343, 62796), (588, 36631), (686, 31398), (1029, 20932), (1372, 15699), (2058, 10466), (4116, 5233)]