21464690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^3\times {\mathrm{977}}^1$

素因数の和:1023

約数の個数: 32

約数和(自身を含む): 41897520

約数和(自身を除く): 20432830

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 977, 1690, 1954, 2197, 4394, 4885, 9770, 10985, 12701, 21970, 25402, 63505, 127010, 165113, 330226, 825565, 1651130, 2146469, 4292938, 10732345, 21464690]

約数ペア:

[(1, 21464690), (2, 10732345), (5, 4292938), (10, 2146469), (13, 1651130), (26, 825565), (65, 330226), (130, 165113), (169, 127010), (338, 63505), (845, 25402), (977, 21970), (1690, 12701), (1954, 10985), (2197, 9770), (4394, 4885)]