21153736

素因数分解:

$2^3\times {\mathrm{673}}^1\times {\mathrm{3929}}^1$

素因数の和:4608

約数の個数: 16

約数和(自身を含む): 39732300

約数和(自身を除く): 18578564

約数列:

[1, 2, 4, 8, 673, 1346, 2692, 3929, 5384, 7858, 15716, 31432, 2644217, 5288434, 10576868, 21153736]

約数ペア:

[(1, 21153736), (2, 10576868), (4, 5288434), (8, 2644217), (673, 31432), (1346, 15716), (2692, 7858), (3929, 5384)]