21819300

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{257}}^1\times {\mathrm{283}}^1$

素因数の和:557

約数の個数: 72

約数和(自身を含む): 63600096

約数和(自身を除く): 41780796

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 257, 283, 300, 514, 566, 771, 849, 1028, 1132, 1285, 1415, 1542, 1698, 2570, 2830, 3084, 3396, 3855, 4245, 5140, 5660, 6425, 7075, 7710, 8490, 12850, 14150, 15420, 16980, 19275, 21225, 25700, 28300, 38550, 42450, 72731, 77100, 84900, 145462, 218193, 290924, 363655, 436386, 727310, 872772, 1090965, 1454620, 1818275, 2181930, 3636550, 4363860, 5454825, 7273100, 10909650, 21819300]

約数ペア:

[(1, 21819300), (2, 10909650), (3, 7273100), (4, 5454825), (5, 4363860), (6, 3636550), (10, 2181930), (12, 1818275), (15, 1454620), (20, 1090965), (25, 872772), (30, 727310), (50, 436386), (60, 363655), (75, 290924), (100, 218193), (150, 145462), (257, 84900), (283, 77100), (300, 72731), (514, 42450), (566, 38550), (771, 28300), (849, 25700), (1028, 21225), (1132, 19275), (1285, 16980), (1415, 15420), (1542, 14150), (1698, 12850), (2570, 8490), (2830, 7710), (3084, 7075), (3396, 6425), (3855, 5660), (4245, 5140)]