21123705

素因数分解:

$3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{15823}}^1$

素因数の和:15920

約数の個数: 16

約数和(自身を含む): 34179840

約数和(自身を除く): 13056135

約数列:

[1, 3, 5, 15, 89, 267, 445, 1335, 15823, 47469, 79115, 237345, 1408247, 4224741, 7041235, 21123705]

約数ペア:

[(1, 21123705), (3, 7041235), (5, 4224741), (15, 1408247), (89, 237345), (267, 79115), (445, 47469), (1335, 15823)]