21273660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1619}}^1$

素因数の和:1707

約数の個数: 72

約数和(自身を含む): 65454480

約数和(自身を除く): 44180820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 73, 90, 146, 180, 219, 292, 365, 438, 657, 730, 876, 1095, 1314, 1460, 1619, 2190, 2628, 3238, 3285, 4380, 4857, 6476, 6570, 8095, 9714, 13140, 14571, 16190, 19428, 24285, 29142, 32380, 48570, 58284, 72855, 97140, 118187, 145710, 236374, 291420, 354561, 472748, 590935, 709122, 1063683, 1181870, 1418244, 1772805, 2127366, 2363740, 3545610, 4254732, 5318415, 7091220, 10636830, 21273660]

約数ペア:

[(1, 21273660), (2, 10636830), (3, 7091220), (4, 5318415), (5, 4254732), (6, 3545610), (9, 2363740), (10, 2127366), (12, 1772805), (15, 1418244), (18, 1181870), (20, 1063683), (30, 709122), (36, 590935), (45, 472748), (60, 354561), (73, 291420), (90, 236374), (146, 145710), (180, 118187), (219, 97140), (292, 72855), (365, 58284), (438, 48570), (657, 32380), (730, 29142), (876, 24285), (1095, 19428), (1314, 16190), (1460, 14571), (1619, 13140), (2190, 9714), (2628, 8095), (3238, 6570), (3285, 6476), (4380, 4857)]