1991992

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{151}}^1$

素因数の和:271

約数の個数: 32

約数和(自身を含む): 4021920

約数和(自身を除く): 2029928

約数列:

[1, 2, 4, 8, 17, 34, 68, 97, 136, 151, 194, 302, 388, 604, 776, 1208, 1649, 2567, 3298, 5134, 6596, 10268, 13192, 14647, 20536, 29294, 58588, 117176, 248999, 497998, 995996, 1991992]

約数ペア:

[(1, 1991992), (2, 995996), (4, 497998), (8, 248999), (17, 117176), (34, 58588), (68, 29294), (97, 20536), (136, 14647), (151, 13192), (194, 10268), (302, 6596), (388, 5134), (604, 3298), (776, 2567), (1208, 1649)]