20213888321

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{181}}^1\times {\mathrm{4079}}^1$

素因数の和:4421

約数の個数: 32

約数和(自身を含む): 23524300800

約数和(自身を除く): 3310412479

約数列:

[1, 11, 19, 131, 181, 209, 1441, 1991, 2489, 3439, 4079, 23711, 27379, 37829, 44869, 77501, 260821, 450509, 534349, 738299, 852511, 4955599, 5877839, 8121289, 10152631, 14027681, 96717169, 111678941, 154304491, 1063888859, 1837626211, 20213888321]

約数ペア:

[(1, 20213888321), (11, 1837626211), (19, 1063888859), (131, 154304491), (181, 111678941), (209, 96717169), (1441, 14027681), (1991, 10152631), (2489, 8121289), (3439, 5877839), (4079, 4955599), (23711, 852511), (27379, 738299), (37829, 534349), (44869, 450509), (77501, 260821)]