21340575746

素因数分解:

$2^1\times 7^3\times {\mathrm{2447}}^1\times {\mathrm{12713}}^1$

素因数の和:15183

約数の個数: 32

約数和(自身を含む): 37348646400

約数和(自身を除く): 16008070654

約数列:

[1, 2, 7, 14, 49, 98, 343, 686, 2447, 4894, 12713, 17129, 25426, 34258, 88991, 119903, 177982, 239806, 622937, 839321, 1245874, 1678642, 4360559, 8721118, 31108711, 62217422, 217760977, 435521954, 1524326839, 3048653678, 10670287873, 21340575746]

約数ペア:

[(1, 21340575746), (2, 10670287873), (7, 3048653678), (14, 1524326839), (49, 435521954), (98, 217760977), (343, 62217422), (686, 31108711), (2447, 8721118), (4894, 4360559), (12713, 1678642), (17129, 1245874), (25426, 839321), (34258, 622937), (88991, 239806), (119903, 177982)]