21307103675

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{192259}}^1$

素因数の和:192324

約数の個数: 48

約数和(自身を含む): 32041282560

約数和(自身を除く): 10734178885

約数列:

[1, 5, 11, 13, 25, 31, 55, 65, 143, 155, 275, 325, 341, 403, 715, 775, 1705, 2015, 3575, 4433, 8525, 10075, 22165, 110825, 192259, 961295, 2114849, 2499367, 4806475, 5960029, 10574245, 12496835, 27493037, 29800145, 52871225, 62484175, 65560319, 77480377, 137465185, 149000725, 327801595, 387401885, 687325925, 852284147, 1639007975, 1937009425, 4261420735, 21307103675]

約数ペア:

[(1, 21307103675), (5, 4261420735), (11, 1937009425), (13, 1639007975), (25, 852284147), (31, 687325925), (55, 387401885), (65, 327801595), (143, 149000725), (155, 137465185), (275, 77480377), (325, 65560319), (341, 62484175), (403, 52871225), (715, 29800145), (775, 27493037), (1705, 12496835), (2015, 10574245), (3575, 5960029), (4433, 4806475), (8525, 2499367), (10075, 2114849), (22165, 961295), (110825, 192259)]