21546160

素因数分解:

$2^4\times 5^1\times {\mathrm{269327}}^1$

素因数の和:269340

約数の個数: 20

約数和(自身を含む): 50095008

約数和(自身を除く): 28548848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 269327, 538654, 1077308, 1346635, 2154616, 2693270, 4309232, 5386540, 10773080, 21546160]

約数ペア:

[(1, 21546160), (2, 10773080), (4, 5386540), (5, 4309232), (8, 2693270), (10, 2154616), (16, 1346635), (20, 1077308), (40, 538654), (80, 269327)]