20315823

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:299

約数の個数: 32

約数和(自身を含む): 30750720

約数和(自身を除く): 10434897

約数列:

[1, 3, 11, 33, 43, 103, 129, 139, 309, 417, 473, 1133, 1419, 1529, 3399, 4429, 4587, 5977, 13287, 14317, 17931, 42951, 48719, 65747, 146157, 157487, 197241, 472461, 615631, 1846893, 6771941, 20315823]

約数ペア:

[(1, 20315823), (3, 6771941), (11, 1846893), (33, 615631), (43, 472461), (103, 197241), (129, 157487), (139, 146157), (309, 65747), (417, 48719), (473, 42951), (1133, 17931), (1419, 14317), (1529, 13287), (3399, 5977), (4429, 4587)]