21393808

素因数分解:

$2^4\times {\mathrm{787}}^1\times {\mathrm{1699}}^1$

素因数の和:2494

約数の個数: 20

約数和(自身を含む): 41527600

約数和(自身を除く): 20133792

約数列:

[1, 2, 4, 8, 16, 787, 1574, 1699, 3148, 3398, 6296, 6796, 12592, 13592, 27184, 1337113, 2674226, 5348452, 10696904, 21393808]

約数ペア:

[(1, 21393808), (2, 10696904), (4, 5348452), (8, 2674226), (16, 1337113), (787, 27184), (1574, 13592), (1699, 12592), (3148, 6796), (3398, 6296)]