31107909

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1103}}^1$

素因数の和:1209

約数の個数: 32

約数和(自身を含む): 50872320

約数和(自身を除く): 19764411

約数列:

[1, 3, 7, 17, 21, 51, 79, 119, 237, 357, 553, 1103, 1343, 1659, 3309, 4029, 7721, 9401, 18751, 23163, 28203, 56253, 87137, 131257, 261411, 393771, 609959, 1481329, 1829877, 4443987, 10369303, 31107909]

約数ペア:

[(1, 31107909), (3, 10369303), (7, 4443987), (17, 1829877), (21, 1481329), (51, 609959), (79, 393771), (119, 261411), (237, 131257), (357, 87137), (553, 56253), (1103, 28203), (1343, 23163), (1659, 18751), (3309, 9401), (4029, 7721)]