21843780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{52009}}^1$

素因数の和:52028

約数の個数: 48

約数和(自身を含む): 69901440

約数和(自身を除く): 48057660

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, 52009, 104018, 156027, 208036, 260045, 312054, 364063, 520090, 624108, 728126, 780135, 1040180, 1092189, 1456252, 1560270, 1820315, 2184378, 3120540, 3640630, 4368756, 5460945, 7281260, 10921890, 21843780]

約数ペア:

[(1, 21843780), (2, 10921890), (3, 7281260), (4, 5460945), (5, 4368756), (6, 3640630), (7, 3120540), (10, 2184378), (12, 1820315), (14, 1560270), (15, 1456252), (20, 1092189), (21, 1040180), (28, 780135), (30, 728126), (35, 624108), (42, 520090), (60, 364063), (70, 312054), (84, 260045), (105, 208036), (140, 156027), (210, 104018), (420, 52009)]