21975142

素因数分解:

$2^1\times 7^1\times {\mathrm{911}}^1\times {\mathrm{1723}}^1$

素因数の和:2643

約数の個数: 16

約数和(自身を含む): 37734912

約数和(自身を除く): 15759770

約数列:

[1, 2, 7, 14, 911, 1723, 1822, 3446, 6377, 12061, 12754, 24122, 1569653, 3139306, 10987571, 21975142]

約数ペア:

[(1, 21975142), (2, 10987571), (7, 3139306), (14, 1569653), (911, 24122), (1723, 12754), (1822, 12061), (3446, 6377)]