647671569

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1\times {\mathrm{269}}^1$

素因数の和:617

約数の個数: 32

約数和(自身を含む): 902880000

約数和(自身を除く): 255208431

約数列:

[1, 3, 37, 109, 111, 199, 269, 327, 597, 807, 4033, 7363, 9953, 12099, 21691, 22089, 29321, 29859, 53531, 65073, 87963, 160593, 802567, 1084877, 1980647, 2407701, 3254631, 5834879, 5941941, 17504637, 215890523, 647671569]

約数ペア:

[(1, 647671569), (3, 215890523), (37, 17504637), (109, 5941941), (111, 5834879), (199, 3254631), (269, 2407701), (327, 1980647), (597, 1084877), (807, 802567), (4033, 160593), (7363, 87963), (9953, 65073), (12099, 53531), (21691, 29859), (22089, 29321)]