21438866

素因数分解:

$2^1\times {\mathrm{101}}^1\times {\mathrm{211}}^1\times {\mathrm{503}}^1$

素因数の和:817

約数の個数: 16

約数和(自身を含む): 32695488

約数和(自身を除く): 11256622

約数列:

[1, 2, 101, 202, 211, 422, 503, 1006, 21311, 42622, 50803, 101606, 106133, 212266, 10719433, 21438866]

約数ペア:

[(1, 21438866), (2, 10719433), (101, 212266), (202, 106133), (211, 101606), (422, 50803), (503, 42622), (1006, 21311)]