213279780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{507809}}^1$

素因数の和:507828

約数の個数: 48

約数和(自身を含む): 682496640

約数和(自身を除く): 469216860

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, 507809, 1015618, 1523427, 2031236, 2539045, 3046854, 3554663, 5078090, 6093708, 7109326, 7617135, 10156180, 10663989, 14218652, 15234270, 17773315, 21327978, 30468540, 35546630, 42655956, 53319945, 71093260, 106639890, 213279780]

約数ペア:

[(1, 213279780), (2, 106639890), (3, 71093260), (4, 53319945), (5, 42655956), (6, 35546630), (7, 30468540), (10, 21327978), (12, 17773315), (14, 15234270), (15, 14218652), (20, 10663989), (21, 10156180), (28, 7617135), (30, 7109326), (35, 6093708), (42, 5078090), (60, 3554663), (70, 3046854), (84, 2539045), (105, 2031236), (140, 1523427), (210, 1015618), (420, 507809)]