21981030

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{10037}}^1$

素因数の和:10120

約数の個数: 32

約数和(自身を含む): 53482464

約数和(自身を除く): 31501434

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 73, 146, 219, 365, 438, 730, 1095, 2190, 10037, 20074, 30111, 50185, 60222, 100370, 150555, 301110, 732701, 1465402, 2198103, 3663505, 4396206, 7327010, 10990515, 21981030]

約数ペア:

[(1, 21981030), (2, 10990515), (3, 7327010), (5, 4396206), (6, 3663505), (10, 2198103), (15, 1465402), (30, 732701), (73, 301110), (146, 150555), (219, 100370), (365, 60222), (438, 50185), (730, 30111), (1095, 20074), (2190, 10037)]