21039990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{11887}}^1$

素因数の和:11956

約数の個数: 32

約数和(自身を含む): 51356160

約数和(自身を除く): 30316170

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 59, 118, 177, 295, 354, 590, 885, 1770, 11887, 23774, 35661, 59435, 71322, 118870, 178305, 356610, 701333, 1402666, 2103999, 3506665, 4207998, 7013330, 10519995, 21039990]

約数ペア:

[(1, 21039990), (2, 10519995), (3, 7013330), (5, 4207998), (6, 3506665), (10, 2103999), (15, 1402666), (30, 701333), (59, 356610), (118, 178305), (177, 118870), (295, 71322), (354, 59435), (590, 35661), (885, 23774), (1770, 11887)]