81491998

素因数分解:

$2^1\times 7^3\times {\mathrm{211}}^1\times {\mathrm{563}}^1$

素因数の和:797

約数の個数: 32

約数和(自身を含む): 143481600

約数和(自身を除く): 61989602

約数列:

[1, 2, 7, 14, 49, 98, 211, 343, 422, 563, 686, 1126, 1477, 2954, 3941, 7882, 10339, 20678, 27587, 55174, 72373, 118793, 144746, 193109, 237586, 386218, 831551, 1663102, 5820857, 11641714, 40745999, 81491998]

約数ペア:

[(1, 81491998), (2, 40745999), (7, 11641714), (14, 5820857), (49, 1663102), (98, 831551), (211, 386218), (343, 237586), (422, 193109), (563, 144746), (686, 118793), (1126, 72373), (1477, 55174), (2954, 27587), (3941, 20678), (7882, 10339)]