220137981

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{379}}^1\times {\mathrm{1627}}^1$

素因数の和:2033

約数の個数: 32

約数和(自身を含む): 356336640

約数和(自身を除く): 136198659

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 379, 1137, 1627, 2653, 4881, 6443, 7959, 11389, 19329, 27659, 34167, 45101, 82977, 135303, 193613, 580839, 616633, 1849899, 4316431, 10482761, 12949293, 31448283, 73379327, 220137981]

約数ペア:

[(1, 220137981), (3, 73379327), (7, 31448283), (17, 12949293), (21, 10482761), (51, 4316431), (119, 1849899), (357, 616633), (379, 580839), (1137, 193613), (1627, 135303), (2653, 82977), (4881, 45101), (6443, 34167), (7959, 27659), (11389, 19329)]