20090707

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{331}}^1$

素因数の和:403

約数の個数: 32

約数和(自身を含む): 26772480

約数和(自身を除く): 6681773

約数列:

[1, 7, 13, 23, 29, 91, 161, 203, 299, 331, 377, 667, 2093, 2317, 2639, 4303, 4669, 7613, 8671, 9599, 30121, 53291, 60697, 67193, 98969, 124787, 220777, 692783, 873509, 1545439, 2870101, 20090707]

約数ペア:

[(1, 20090707), (7, 2870101), (13, 1545439), (23, 873509), (29, 692783), (91, 220777), (161, 124787), (203, 98969), (299, 67193), (331, 60697), (377, 53291), (667, 30121), (2093, 9599), (2317, 8671), (2639, 7613), (4303, 4669)]