20465848

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{641}}^1$

素因数の和:967

約数の個数: 32

約数和(自身を含む): 41524560

約数和(自身を除く): 21058712

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 307, 614, 641, 1228, 1282, 2456, 2564, 3991, 5128, 7982, 8333, 15964, 16666, 31928, 33332, 66664, 196787, 393574, 787148, 1574296, 2558231, 5116462, 10232924, 20465848]

約数ペア:

[(1, 20465848), (2, 10232924), (4, 5116462), (8, 2558231), (13, 1574296), (26, 787148), (52, 393574), (104, 196787), (307, 66664), (614, 33332), (641, 31928), (1228, 16666), (1282, 15964), (2456, 8333), (2564, 7982), (3991, 5128)]