213913140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{509317}}^1$

素因数の和:509336

約数の個数: 48

約数和(自身を含む): 684523392

約数和(自身を除く): 470610252

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 509317, 1018634, 1527951, 2037268, 2546585, 3055902, 3565219, 5093170, 6111804, 7130438, 7639755, 10186340, 10695657, 14260876, 15279510, 17826095, 21391314, 30559020, 35652190, 42782628, 53478285, 71304380, 106956570, 213913140]

約数ペア:

[(1, 213913140), (2, 106956570), (3, 71304380), (4, 53478285), (5, 42782628), (6, 35652190), (7, 30559020), (10, 21391314), (12, 17826095), (14, 15279510), (15, 14260876), (20, 10695657), (21, 10186340), (28, 7639755), (30, 7130438), (35, 6111804), (42, 5093170), (60, 3565219), (70, 3055902), (84, 2546585), (105, 2037268), (140, 1527951), (210, 1018634), (420, 509317)]