19989416

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{1427}}^1$

素因数の和:1553

約数の個数: 32

約数和(自身を含む): 40098240

約数和(自身を除く): 20108824

約数列:

[1, 2, 4, 8, 17, 34, 68, 103, 136, 206, 412, 824, 1427, 1751, 2854, 3502, 5708, 7004, 11416, 14008, 24259, 48518, 97036, 146981, 194072, 293962, 587924, 1175848, 2498677, 4997354, 9994708, 19989416]

約数ペア:

[(1, 19989416), (2, 9994708), (4, 4997354), (8, 2498677), (17, 1175848), (34, 587924), (68, 293962), (103, 194072), (136, 146981), (206, 97036), (412, 48518), (824, 24259), (1427, 14008), (1751, 11416), (2854, 7004), (3502, 5708)]