18971218

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1009}}^1$

素因数の和:1114

約数の個数: 32

約数和(自身を含む): 34905600

約数和(自身を除く): 15934382

約数列:

[1, 2, 7, 14, 17, 34, 79, 119, 158, 238, 553, 1009, 1106, 1343, 2018, 2686, 7063, 9401, 14126, 17153, 18802, 34306, 79711, 120071, 159422, 240142, 557977, 1115954, 1355087, 2710174, 9485609, 18971218]

約数ペア:

[(1, 18971218), (2, 9485609), (7, 2710174), (14, 1355087), (17, 1115954), (34, 557977), (79, 240142), (119, 159422), (158, 120071), (238, 79711), (553, 34306), (1009, 18802), (1106, 17153), (1343, 14126), (2018, 9401), (2686, 7063)]