20788124

素因数分解:

$2^2\times 7^1\times {\mathrm{331}}^1\times {\mathrm{2243}}^1$

素因数の和:2585

約数の個数: 24

約数和(自身を含む): 41720448

約数和(自身を除く): 20932324

約数列:

[1, 2, 4, 7, 14, 28, 331, 662, 1324, 2243, 2317, 4486, 4634, 8972, 9268, 15701, 31402, 62804, 742433, 1484866, 2969732, 5197031, 10394062, 20788124]

約数ペア:

[(1, 20788124), (2, 10394062), (4, 5197031), (7, 2969732), (14, 1484866), (28, 742433), (331, 62804), (662, 31402), (1324, 15701), (2243, 9268), (2317, 8972), (4486, 4634)]