21903345

素因数分解:

$3^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1823}}^1$

素因数の和:1926

約数の個数: 32

約数和(自身を含む): 39398400

約数和(自身を除く): 17495055

約数列:

[1, 3, 5, 9, 15, 27, 45, 89, 135, 267, 445, 801, 1335, 1823, 2403, 4005, 5469, 9115, 12015, 16407, 27345, 49221, 82035, 162247, 246105, 486741, 811235, 1460223, 2433705, 4380669, 7301115, 21903345]

約数ペア:

[(1, 21903345), (3, 7301115), (5, 4380669), (9, 2433705), (15, 1460223), (27, 811235), (45, 486741), (89, 246105), (135, 162247), (267, 82035), (445, 49221), (801, 27345), (1335, 16407), (1823, 12015), (2403, 9115), (4005, 5469)]