20219657991

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{743}}^1\times {\mathrm{18859}}^1$

素因数の和:19655

約数の個数: 32

約数和(自身を含む): 29859755520

約数和(自身を除く): 9640097529

約数列:

[1, 3, 13, 37, 39, 111, 481, 743, 1443, 2229, 9659, 18859, 27491, 28977, 56577, 82473, 245167, 357383, 697783, 735501, 1072149, 2093349, 9071179, 14012237, 27213537, 42036711, 182159081, 518452769, 546477243, 1555358307, 6739885997, 20219657991]

約数ペア:

[(1, 20219657991), (3, 6739885997), (13, 1555358307), (37, 546477243), (39, 518452769), (111, 182159081), (481, 42036711), (743, 27213537), (1443, 14012237), (2229, 9071179), (9659, 2093349), (18859, 1072149), (27491, 735501), (28977, 697783), (56577, 357383), (82473, 245167)]