21505800

素因数分解:

$2^3\times 3^1\times 5^2\times {\mathrm{73}}^1\times {\mathrm{491}}^1$

素因数の和:583

約数の個数: 96

約数和(自身を含む): 67718880

約数和(自身を除く): 46213080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 60, 73, 75, 100, 120, 146, 150, 200, 219, 292, 300, 365, 438, 491, 584, 600, 730, 876, 982, 1095, 1460, 1473, 1752, 1825, 1964, 2190, 2455, 2920, 2946, 3650, 3928, 4380, 4910, 5475, 5892, 7300, 7365, 8760, 9820, 10950, 11784, 12275, 14600, 14730, 19640, 21900, 24550, 29460, 35843, 36825, 43800, 49100, 58920, 71686, 73650, 98200, 107529, 143372, 147300, 179215, 215058, 286744, 294600, 358430, 430116, 537645, 716860, 860232, 896075, 1075290, 1433720, 1792150, 2150580, 2688225, 3584300, 4301160, 5376450, 7168600, 10752900, 21505800]

約数ペア:

[(1, 21505800), (2, 10752900), (3, 7168600), (4, 5376450), (5, 4301160), (6, 3584300), (8, 2688225), (10, 2150580), (12, 1792150), (15, 1433720), (20, 1075290), (24, 896075), (25, 860232), (30, 716860), (40, 537645), (50, 430116), (60, 358430), (73, 294600), (75, 286744), (100, 215058), (120, 179215), (146, 147300), (150, 143372), (200, 107529), (219, 98200), (292, 73650), (300, 71686), (365, 58920), (438, 49100), (491, 43800), (584, 36825), (600, 35843), (730, 29460), (876, 24550), (982, 21900), (1095, 19640), (1460, 14730), (1473, 14600), (1752, 12275), (1825, 11784), (1964, 10950), (2190, 9820), (2455, 8760), (2920, 7365), (2946, 7300), (3650, 5892), (3928, 5475), (4380, 4910)]