21690362

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{15427}}^1$

素因数の和:15485

約数の個数: 16

約数和(自身を含む): 35175840

約数和(自身を除く): 13485478

約数列:

[1, 2, 19, 37, 38, 74, 703, 1406, 15427, 30854, 293113, 570799, 586226, 1141598, 10845181, 21690362]

約数ペア:

[(1, 21690362), (2, 10845181), (19, 1141598), (37, 586226), (38, 570799), (74, 293113), (703, 30854), (1406, 15427)]