19928727

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{8111}}^1$

素因数の和:8140

約数の個数: 32

約数和(自身を含む): 36341760

約数和(自身を除く): 16413033

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 351, 819, 2457, 8111, 24333, 56777, 72999, 105443, 170331, 218997, 316329, 510993, 738101, 948987, 1532979, 2214303, 2846961, 6642909, 19928727]

約数ペア:

[(1, 19928727), (3, 6642909), (7, 2846961), (9, 2214303), (13, 1532979), (21, 948987), (27, 738101), (39, 510993), (63, 316329), (91, 218997), (117, 170331), (189, 105443), (273, 72999), (351, 56777), (819, 24333), (2457, 8111)]