639898341

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{1319}}^1$

素因数の和:1513

約数の個数: 32

約数和(自身を含む): 912384000

約数和(自身を除く): 272485659

約数列:

[1, 3, 23, 69, 79, 89, 237, 267, 1319, 1817, 2047, 3957, 5451, 6141, 7031, 21093, 30337, 91011, 104201, 117391, 161713, 312603, 352173, 485139, 2396623, 2699993, 7189869, 8099979, 9273889, 27821667, 213299447, 639898341]

約数ペア:

[(1, 639898341), (3, 213299447), (23, 27821667), (69, 9273889), (79, 8099979), (89, 7189869), (237, 2699993), (267, 2396623), (1319, 485139), (1817, 352173), (2047, 312603), (3957, 161713), (5451, 117391), (6141, 104201), (7031, 91011), (21093, 30337)]