20648535

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{1367}}^1$

素因数の和:1447

約数の個数: 32

約数和(自身を含む): 35458560

約数和(自身を除く): 14810025

約数列:

[1, 3, 5, 15, 19, 53, 57, 95, 159, 265, 285, 795, 1007, 1367, 3021, 4101, 5035, 6835, 15105, 20505, 25973, 72451, 77919, 129865, 217353, 362255, 389595, 1086765, 1376569, 4129707, 6882845, 20648535]

約数ペア:

[(1, 20648535), (3, 6882845), (5, 4129707), (15, 1376569), (19, 1086765), (53, 389595), (57, 362255), (95, 217353), (159, 129865), (265, 77919), (285, 72451), (795, 25973), (1007, 20505), (1367, 15105), (3021, 6835), (4101, 5035)]