21308971

素因数分解:

${\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{383}}^1$

素因数の和:506

約数の個数: 16

約数和(自身を含む): 23224320

約数和(自身を除く): 1915349

約数列:

[1, 23, 41, 59, 383, 943, 1357, 2419, 8809, 15703, 22597, 55637, 361169, 519731, 926477, 21308971]

約数ペア:

[(1, 21308971), (23, 926477), (41, 519731), (59, 361169), (383, 55637), (943, 22597), (1357, 15703), (2419, 8809)]