388638789

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{929}}^1\times {\mathrm{1811}}^1$

素因数の和:2761

約数の個数: 32

約数和(自身を含む): 647101440

約数和(自身を除く): 258462651

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 929, 1811, 2787, 5433, 6503, 10219, 12677, 19509, 19921, 30657, 38031, 59763, 71533, 139447, 214599, 418341, 1682419, 5047257, 11776933, 18506609, 35330799, 55519827, 129546263, 388638789]

約数ペア:

[(1, 388638789), (3, 129546263), (7, 55519827), (11, 35330799), (21, 18506609), (33, 11776933), (77, 5047257), (231, 1682419), (929, 418341), (1811, 214599), (2787, 139447), (5433, 71533), (6503, 59763), (10219, 38031), (12677, 30657), (19509, 19921)]