20641842

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5189}}^1$

素因数の和:5227

約数の個数: 48

約数和(自身を含む): 51007320

約数和(自身を除く): 30365478

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 34, 39, 51, 78, 102, 117, 153, 221, 234, 306, 442, 663, 1326, 1989, 3978, 5189, 10378, 15567, 31134, 46701, 67457, 88213, 93402, 134914, 176426, 202371, 264639, 404742, 529278, 607113, 793917, 1146769, 1214226, 1587834, 2293538, 3440307, 6880614, 10320921, 20641842]

約数ペア:

[(1, 20641842), (2, 10320921), (3, 6880614), (6, 3440307), (9, 2293538), (13, 1587834), (17, 1214226), (18, 1146769), (26, 793917), (34, 607113), (39, 529278), (51, 404742), (78, 264639), (102, 202371), (117, 176426), (153, 134914), (221, 93402), (234, 88213), (306, 67457), (442, 46701), (663, 31134), (1326, 15567), (1989, 10378), (3978, 5189)]