21680308

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{10169}}^1$

素因数の和:10227

約数の個数: 24

約数和(自身を含む): 41859720

約数和(自身を除く): 20179412

約数列:

[1, 2, 4, 13, 26, 41, 52, 82, 164, 533, 1066, 2132, 10169, 20338, 40676, 132197, 264394, 416929, 528788, 833858, 1667716, 5420077, 10840154, 21680308]

約数ペア:

[(1, 21680308), (2, 10840154), (4, 5420077), (13, 1667716), (26, 833858), (41, 528788), (52, 416929), (82, 264394), (164, 132197), (533, 40676), (1066, 20338), (2132, 10169)]