21652631

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{223}}^1$

素因数の和:351

約数の個数: 32

約数和(自身を含む): 29503488

約数和(自身を除く): 7850857

約数列:

[1, 7, 11, 13, 77, 91, 97, 143, 223, 679, 1001, 1067, 1261, 1561, 2453, 2899, 7469, 8827, 13871, 17171, 20293, 21631, 31889, 97097, 151417, 223223, 237941, 281203, 1665587, 1968421, 3093233, 21652631]

約数ペア:

[(1, 21652631), (7, 3093233), (11, 1968421), (13, 1665587), (77, 281203), (91, 237941), (97, 223223), (143, 151417), (223, 97097), (679, 31889), (1001, 21631), (1067, 20293), (1261, 17171), (1561, 13871), (2453, 8827), (2899, 7469)]