21013408

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{50513}}^1$

素因数の和:50536

約数の個数: 24

約数和(自身を含む): 44553348

約数和(自身を除く): 23539940

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 50513, 101026, 202052, 404104, 656669, 808208, 1313338, 1616416, 2626676, 5253352, 10506704, 21013408]

約数ペア:

[(1, 21013408), (2, 10506704), (4, 5253352), (8, 2626676), (13, 1616416), (16, 1313338), (26, 808208), (32, 656669), (52, 404104), (104, 202052), (208, 101026), (416, 50513)]