20179047

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{223}}^1$

素因数の和:403

約数の個数: 32

約数和(自身を含む): 32112640

約数和(自身を除く): 11933593

約数列:

[1, 3, 7, 21, 31, 93, 139, 217, 223, 417, 651, 669, 973, 1561, 2919, 4309, 4683, 6913, 12927, 20739, 30163, 30997, 48391, 90489, 92991, 145173, 216979, 650937, 960907, 2882721, 6726349, 20179047]

約数ペア:

[(1, 20179047), (3, 6726349), (7, 2882721), (21, 960907), (31, 650937), (93, 216979), (139, 145173), (217, 92991), (223, 90489), (417, 48391), (651, 30997), (669, 30163), (973, 20739), (1561, 12927), (2919, 6913), (4309, 4683)]