21409156690

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{457}}^1\times {\mathrm{33703}}^1$

素因数の和:34306

約数の個数: 32

約数和(自身を含む): 38899808640

約数和(自身を除く): 17490651950

約数列:

[1, 2, 5, 10, 139, 278, 457, 695, 914, 1390, 2285, 4570, 33703, 63523, 67406, 127046, 168515, 317615, 337030, 635230, 4684717, 9369434, 15402271, 23423585, 30804542, 46847170, 77011355, 154022710, 2140915669, 4281831338, 10704578345, 21409156690]

約数ペア:

[(1, 21409156690), (2, 10704578345), (5, 4281831338), (10, 2140915669), (139, 154022710), (278, 77011355), (457, 46847170), (695, 30804542), (914, 23423585), (1390, 15402271), (2285, 9369434), (4570, 4684717), (33703, 635230), (63523, 337030), (67406, 317615), (127046, 168515)]