21037338

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1621}}^1$

素因数の和:1739

約数の個数: 48

約数和(自身を含む): 52630656

約数和(自身を除く): 31593318

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 103, 126, 206, 309, 618, 721, 927, 1442, 1621, 1854, 2163, 3242, 4326, 4863, 6489, 9726, 11347, 12978, 14589, 22694, 29178, 34041, 68082, 102123, 166963, 204246, 333926, 500889, 1001778, 1168741, 1502667, 2337482, 3005334, 3506223, 7012446, 10518669, 21037338]

約数ペア:

[(1, 21037338), (2, 10518669), (3, 7012446), (6, 3506223), (7, 3005334), (9, 2337482), (14, 1502667), (18, 1168741), (21, 1001778), (42, 500889), (63, 333926), (103, 204246), (126, 166963), (206, 102123), (309, 68082), (618, 34041), (721, 29178), (927, 22694), (1442, 14589), (1621, 12978), (1854, 11347), (2163, 9726), (3242, 6489), (4326, 4863)]