21974890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{13649}}^1$

素因数の和:13686

約数の個数: 32

約数和(自身を含む): 47174400

約数和(自身を除く): 25199510

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 115, 161, 230, 322, 805, 1610, 13649, 27298, 68245, 95543, 136490, 191086, 313927, 477715, 627854, 955430, 1569635, 2197489, 3139270, 4394978, 10987445, 21974890]

約数ペア:

[(1, 21974890), (2, 10987445), (5, 4394978), (7, 3139270), (10, 2197489), (14, 1569635), (23, 955430), (35, 627854), (46, 477715), (70, 313927), (115, 191086), (161, 136490), (230, 95543), (322, 68245), (805, 27298), (1610, 13649)]