21333945

素因数分解:

$3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{9059}}^1$

素因数の和:9224

約数の個数: 16

約数和(自身を含む): 34355520

約数和(自身を除く): 13021575

約数列:

[1, 3, 5, 15, 157, 471, 785, 2355, 9059, 27177, 45295, 135885, 1422263, 4266789, 7111315, 21333945]

約数ペア:

[(1, 21333945), (3, 7111315), (5, 4266789), (15, 1422263), (157, 135885), (471, 45295), (785, 27177), (2355, 9059)]