21572670

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2389}}^1$

素因数の和:2449

約数の個数: 64

約数和(自身を含む): 60572160

約数和(自身を除く): 38999490

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 43, 70, 86, 105, 129, 210, 215, 258, 301, 430, 602, 645, 903, 1290, 1505, 1806, 2389, 3010, 4515, 4778, 7167, 9030, 11945, 14334, 16723, 23890, 33446, 35835, 50169, 71670, 83615, 100338, 102727, 167230, 205454, 250845, 308181, 501690, 513635, 616362, 719089, 1027270, 1438178, 1540905, 2157267, 3081810, 3595445, 4314534, 7190890, 10786335, 21572670]

約数ペア:

[(1, 21572670), (2, 10786335), (3, 7190890), (5, 4314534), (6, 3595445), (7, 3081810), (10, 2157267), (14, 1540905), (15, 1438178), (21, 1027270), (30, 719089), (35, 616362), (42, 513635), (43, 501690), (70, 308181), (86, 250845), (105, 205454), (129, 167230), (210, 102727), (215, 100338), (258, 83615), (301, 71670), (430, 50169), (602, 35835), (645, 33446), (903, 23890), (1290, 16723), (1505, 14334), (1806, 11945), (2389, 9030), (3010, 7167), (4515, 4778)]