20121581649

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{347}}^1\times {\mathrm{47963}}^1$

素因数の和:48357

約数の個数: 32

約数和(自身を含む): 29911117824

約数和(自身を除く): 9789536175

約数列:

[1, 3, 13, 31, 39, 93, 347, 403, 1041, 1209, 4511, 10757, 13533, 32271, 47963, 139841, 143889, 419523, 623519, 1486853, 1870557, 4460559, 16643161, 19329089, 49929483, 57987267, 216361093, 515937991, 649083279, 1547813973, 6707193883, 20121581649]

約数ペア:

[(1, 20121581649), (3, 6707193883), (13, 1547813973), (31, 649083279), (39, 515937991), (93, 216361093), (347, 57987267), (403, 49929483), (1041, 19329089), (1209, 16643161), (4511, 4460559), (10757, 1870557), (13533, 1486853), (32271, 623519), (47963, 419523), (139841, 143889)]