21355860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{7573}}^1$

素因数の和:7632

約数の個数: 48

約数和(自身を含む): 61076736

約数和(自身を除く): 39720876

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 47, 60, 94, 141, 188, 235, 282, 470, 564, 705, 940, 1410, 2820, 7573, 15146, 22719, 30292, 37865, 45438, 75730, 90876, 113595, 151460, 227190, 355931, 454380, 711862, 1067793, 1423724, 1779655, 2135586, 3559310, 4271172, 5338965, 7118620, 10677930, 21355860]

約数ペア:

[(1, 21355860), (2, 10677930), (3, 7118620), (4, 5338965), (5, 4271172), (6, 3559310), (10, 2135586), (12, 1779655), (15, 1423724), (20, 1067793), (30, 711862), (47, 454380), (60, 355931), (94, 227190), (141, 151460), (188, 113595), (235, 90876), (282, 75730), (470, 45438), (564, 37865), (705, 30292), (940, 22719), (1410, 15146), (2820, 7573)]