21270147344

素因数分解:

$2^4\times {\mathrm{457}}^1\times {\mathrm{2908937}}^1$

素因数の和:2909402

約数の個数: 20

約数和(自身を含む): 41301101724

約数和(自身を除く): 20030954380

約数列:

[1, 2, 4, 8, 16, 457, 914, 1828, 3656, 7312, 2908937, 5817874, 11635748, 23271496, 46542992, 1329384209, 2658768418, 5317536836, 10635073672, 21270147344]

約数ペア:

[(1, 21270147344), (2, 10635073672), (4, 5317536836), (8, 2658768418), (16, 1329384209), (457, 46542992), (914, 23271496), (1828, 11635748), (3656, 5817874), (7312, 2908937)]