20273721

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{409}}^1$

素因数の和:497

約数の個数: 32

約数和(自身を含む): 30858240

約数和(自身を除く): 10584519

約数列:

[1, 3, 13, 31, 39, 41, 93, 123, 403, 409, 533, 1209, 1227, 1271, 1599, 3813, 5317, 12679, 15951, 16523, 16769, 38037, 49569, 50307, 164827, 217997, 494481, 519839, 653991, 1559517, 6757907, 20273721]

約数ペア:

[(1, 20273721), (3, 6757907), (13, 1559517), (31, 653991), (39, 519839), (41, 494481), (93, 217997), (123, 164827), (403, 50307), (409, 49569), (533, 38037), (1209, 16769), (1227, 16523), (1271, 15951), (1599, 12679), (3813, 5317)]