21667300

素因数分解:

$2^2\times 5^2\times {\mathrm{389}}^1\times {\mathrm{557}}^1$

素因数の和:960

約数の個数: 36

約数和(自身を含む): 47223540

約数和(自身を除く): 25556240

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 389, 557, 778, 1114, 1556, 1945, 2228, 2785, 3890, 5570, 7780, 9725, 11140, 13925, 19450, 27850, 38900, 55700, 216673, 433346, 866692, 1083365, 2166730, 4333460, 5416825, 10833650, 21667300]

約数ペア:

[(1, 21667300), (2, 10833650), (4, 5416825), (5, 4333460), (10, 2166730), (20, 1083365), (25, 866692), (50, 433346), (100, 216673), (389, 55700), (557, 38900), (778, 27850), (1114, 19450), (1556, 13925), (1945, 11140), (2228, 9725), (2785, 7780), (3890, 5570)]