21595890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16741}}^1$

素因数の和:16794

約数の個数: 32

約数和(自身を含む): 53038656

約数和(自身を除く): 31442766

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, 1290, 16741, 33482, 50223, 83705, 100446, 167410, 251115, 502230, 719863, 1439726, 2159589, 3599315, 4319178, 7198630, 10797945, 21595890]

約数ペア:

[(1, 21595890), (2, 10797945), (3, 7198630), (5, 4319178), (6, 3599315), (10, 2159589), (15, 1439726), (30, 719863), (43, 502230), (86, 251115), (129, 167410), (215, 100446), (258, 83705), (430, 50223), (645, 33482), (1290, 16741)]