21079431368

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{409}}^1\times {\mathrm{280103}}^1$

素因数の和:280541

約数の個数: 32

約数和(自身を含む): 41343350400

約数和(自身を除く): 20263919032

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 409, 818, 1636, 3272, 9407, 18814, 37628, 75256, 280103, 560206, 1120412, 2240824, 6442369, 12884738, 25769476, 51538952, 114562127, 229124254, 458248508, 916497016, 2634928921, 5269857842, 10539715684, 21079431368]

約数ペア:

[(1, 21079431368), (2, 10539715684), (4, 5269857842), (8, 2634928921), (23, 916497016), (46, 458248508), (92, 229124254), (184, 114562127), (409, 51538952), (818, 25769476), (1636, 12884738), (3272, 6442369), (9407, 2240824), (18814, 1120412), (37628, 560206), (75256, 280103)]