21840270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{4637}}^1$

素因数の和:4804

約数の個数: 32

約数和(自身を含む): 52761888

約数和(自身を除く): 30921618

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 157, 314, 471, 785, 942, 1570, 2355, 4637, 4710, 9274, 13911, 23185, 27822, 46370, 69555, 139110, 728009, 1456018, 2184027, 3640045, 4368054, 7280090, 10920135, 21840270]

約数ペア:

[(1, 21840270), (2, 10920135), (3, 7280090), (5, 4368054), (6, 3640045), (10, 2184027), (15, 1456018), (30, 728009), (157, 139110), (314, 69555), (471, 46370), (785, 27822), (942, 23185), (1570, 13911), (2355, 9274), (4637, 4710)]