20343267

素因数分解:

$3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{2357}}^1$

素因数の和:2507

約数の個数: 24

約数和(自身を含む): 33842016

約数和(自身を除く): 13498749

約数列:

[1, 3, 7, 9, 21, 63, 137, 411, 959, 1233, 2357, 2877, 7071, 8631, 16499, 21213, 49497, 148491, 322909, 968727, 2260363, 2906181, 6781089, 20343267]

約数ペア:

[(1, 20343267), (3, 6781089), (7, 2906181), (9, 2260363), (21, 968727), (63, 322909), (137, 148491), (411, 49497), (959, 21213), (1233, 16499), (2357, 8631), (2877, 7071)]