221107579

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{6571}}^1$

素因数の和:6631

約数の個数: 32

約数和(自身を含む): 302837760

約数和(自身を除く): 81730181

約数列:

[1, 7, 11, 19, 23, 77, 133, 161, 209, 253, 437, 1463, 1771, 3059, 4807, 6571, 33649, 45997, 72281, 124849, 151133, 505967, 873943, 1057931, 1373339, 1662463, 2871527, 9613373, 11637241, 20100689, 31586797, 221107579]

約数ペア:

[(1, 221107579), (7, 31586797), (11, 20100689), (19, 11637241), (23, 9613373), (77, 2871527), (133, 1662463), (161, 1373339), (209, 1057931), (253, 873943), (437, 505967), (1463, 151133), (1771, 124849), (3059, 72281), (4807, 45997), (6571, 33649)]