28049385

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{20549}}^1$

素因数の和:20577

約数の個数: 32

約数和(自身を含む): 55238400

約数和(自身を除く): 27189015

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 20549, 61647, 102745, 143843, 267137, 308235, 431529, 719215, 801411, 1335685, 1869959, 2157645, 4007055, 5609877, 9349795, 28049385]

約数ペア:

[(1, 28049385), (3, 9349795), (5, 5609877), (7, 4007055), (13, 2157645), (15, 1869959), (21, 1335685), (35, 801411), (39, 719215), (65, 431529), (91, 308235), (105, 267137), (195, 143843), (273, 102745), (455, 61647), (1365, 20549)]