213241980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{507719}}^1$

素因数の和:507738

約数の個数: 48

約数和(自身を含む): 682375680

約数和(自身を除く): 469133700

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, 507719, 1015438, 1523157, 2030876, 2538595, 3046314, 3554033, 5077190, 6092628, 7108066, 7615785, 10154380, 10662099, 14216132, 15231570, 17770165, 21324198, 30463140, 35540330, 42648396, 53310495, 71080660, 106620990, 213241980]

約数ペア:

[(1, 213241980), (2, 106620990), (3, 71080660), (4, 53310495), (5, 42648396), (6, 35540330), (7, 30463140), (10, 21324198), (12, 17770165), (14, 15231570), (15, 14216132), (20, 10662099), (21, 10154380), (28, 7615785), (30, 7108066), (35, 6092628), (42, 5077190), (60, 3554033), (70, 3046314), (84, 2538595), (105, 2030876), (140, 1523157), (210, 1015438), (420, 507719)]