21209460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{2341}}^1$

素因数の和:2504

約数の個数: 48

約数和(自身を含む): 59805312

約数和(自身を除く): 38595852

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 151, 302, 453, 604, 755, 906, 1510, 1812, 2265, 2341, 3020, 4530, 4682, 7023, 9060, 9364, 11705, 14046, 23410, 28092, 35115, 46820, 70230, 140460, 353491, 706982, 1060473, 1413964, 1767455, 2120946, 3534910, 4241892, 5302365, 7069820, 10604730, 21209460]

約数ペア:

[(1, 21209460), (2, 10604730), (3, 7069820), (4, 5302365), (5, 4241892), (6, 3534910), (10, 2120946), (12, 1767455), (15, 1413964), (20, 1060473), (30, 706982), (60, 353491), (151, 140460), (302, 70230), (453, 46820), (604, 35115), (755, 28092), (906, 23410), (1510, 14046), (1812, 11705), (2265, 9364), (2341, 9060), (3020, 7023), (4530, 4682)]