21911318

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{3331}}^1$

素因数の和:3380

約数の個数: 32

約数和(自身を含む): 40303872

約数和(自身を除く): 18392554

約数列:

[1, 2, 11, 13, 22, 23, 26, 46, 143, 253, 286, 299, 506, 598, 3289, 3331, 6578, 6662, 36641, 43303, 73282, 76613, 86606, 153226, 476333, 842743, 952666, 995969, 1685486, 1991938, 10955659, 21911318]

約数ペア:

[(1, 21911318), (2, 10955659), (11, 1991938), (13, 1685486), (22, 995969), (23, 952666), (26, 842743), (46, 476333), (143, 153226), (253, 86606), (286, 76613), (299, 73282), (506, 43303), (598, 36641), (3289, 6662), (3331, 6578)]