21781650

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{307}}^1$

素因数の和:376

約数の個数: 96

約数和(自身を含む): 60496128

約数和(自身を除く): 38714478

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 25, 30, 33, 43, 50, 55, 66, 75, 86, 110, 129, 150, 165, 215, 258, 275, 307, 330, 430, 473, 550, 614, 645, 825, 921, 946, 1075, 1290, 1419, 1535, 1650, 1842, 2150, 2365, 2838, 3070, 3225, 3377, 4605, 4730, 6450, 6754, 7095, 7675, 9210, 10131, 11825, 13201, 14190, 15350, 16885, 20262, 23025, 23650, 26402, 33770, 35475, 39603, 46050, 50655, 66005, 70950, 79206, 84425, 101310, 132010, 145211, 168850, 198015, 253275, 290422, 330025, 396030, 435633, 506550, 660050, 726055, 871266, 990075, 1452110, 1980150, 2178165, 3630275, 4356330, 7260550, 10890825, 21781650]

約数ペア:

[(1, 21781650), (2, 10890825), (3, 7260550), (5, 4356330), (6, 3630275), (10, 2178165), (11, 1980150), (15, 1452110), (22, 990075), (25, 871266), (30, 726055), (33, 660050), (43, 506550), (50, 435633), (55, 396030), (66, 330025), (75, 290422), (86, 253275), (110, 198015), (129, 168850), (150, 145211), (165, 132010), (215, 101310), (258, 84425), (275, 79206), (307, 70950), (330, 66005), (430, 50655), (473, 46050), (550, 39603), (614, 35475), (645, 33770), (825, 26402), (921, 23650), (946, 23025), (1075, 20262), (1290, 16885), (1419, 15350), (1535, 14190), (1650, 13201), (1842, 11825), (2150, 10131), (2365, 9210), (2838, 7675), (3070, 7095), (3225, 6754), (3377, 6450), (4605, 4730)]