20892417

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{743}}^1$

素因数の和:869

約数の個数: 32

約数和(自身を含む): 34664448

約数和(自身を除く): 13772031

約数列:

[1, 3, 7, 13, 21, 39, 91, 103, 273, 309, 721, 743, 1339, 2163, 2229, 4017, 5201, 9373, 9659, 15603, 28119, 28977, 67613, 76529, 202839, 229587, 535703, 994877, 1607109, 2984631, 6964139, 20892417]

約数ペア:

[(1, 20892417), (3, 6964139), (7, 2984631), (13, 1607109), (21, 994877), (39, 535703), (91, 229587), (103, 202839), (273, 76529), (309, 67613), (721, 28977), (743, 28119), (1339, 15603), (2163, 9659), (2229, 9373), (4017, 5201)]