21273800

素因数分解:

$2^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{6257}}^1$

素因数の和:6290

約数の個数: 48

約数和(自身を含む): 52379460

約数和(自身を除く): 31105660

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 68, 85, 100, 136, 170, 200, 340, 425, 680, 850, 1700, 3400, 6257, 12514, 25028, 31285, 50056, 62570, 106369, 125140, 156425, 212738, 250280, 312850, 425476, 531845, 625700, 850952, 1063690, 1251400, 2127380, 2659225, 4254760, 5318450, 10636900, 21273800]

約数ペア:

[(1, 21273800), (2, 10636900), (4, 5318450), (5, 4254760), (8, 2659225), (10, 2127380), (17, 1251400), (20, 1063690), (25, 850952), (34, 625700), (40, 531845), (50, 425476), (68, 312850), (85, 250280), (100, 212738), (136, 156425), (170, 125140), (200, 106369), (340, 62570), (425, 50056), (680, 31285), (850, 25028), (1700, 12514), (3400, 6257)]