21512910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{19381}}^1$

素因数の和:19428

約数の個数: 32

約数和(自身を含む): 53029152

約数和(自身を除く): 31516242

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 37, 74, 111, 185, 222, 370, 555, 1110, 19381, 38762, 58143, 96905, 116286, 193810, 290715, 581430, 717097, 1434194, 2151291, 3585485, 4302582, 7170970, 10756455, 21512910]

約数ペア:

[(1, 21512910), (2, 10756455), (3, 7170970), (5, 4302582), (6, 3585485), (10, 2151291), (15, 1434194), (30, 717097), (37, 581430), (74, 290715), (111, 193810), (185, 116286), (222, 96905), (370, 58143), (555, 38762), (1110, 19381)]