2720565407

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{21023}}^1$

素因数の和:21195

約数の個数: 24

約数和(自身を含む): 3355430400

約数和(自身を除く): 634864993

約数列:

[1, 7, 19, 49, 133, 139, 931, 973, 2641, 6811, 18487, 21023, 129409, 147161, 399437, 1030127, 2796059, 2922197, 19572413, 20455379, 55521743, 143187653, 388652201, 2720565407]

約数ペア:

[(1, 2720565407), (7, 388652201), (19, 143187653), (49, 55521743), (133, 20455379), (139, 19572413), (931, 2922197), (973, 2796059), (2641, 1030127), (6811, 399437), (18487, 147161), (21023, 129409)]