21690690

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{103289}}^1$

素因数の和:103306

約数の個数: 32

約数和(自身を含む): 59495040

約数和(自身を除く): 37804350

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 103289, 206578, 309867, 516445, 619734, 723023, 1032890, 1446046, 1549335, 2169069, 3098670, 3615115, 4338138, 7230230, 10845345, 21690690]

約数ペア:

[(1, 21690690), (2, 10845345), (3, 7230230), (5, 4338138), (6, 3615115), (7, 3098670), (10, 2169069), (14, 1549335), (15, 1446046), (21, 1032890), (30, 723023), (35, 619734), (42, 516445), (70, 309867), (105, 206578), (210, 103289)]