18260397

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:267

約数の個数: 40

約数和(自身を含む): 29403000

約数和(自身を除く): 11142603

約数列:

[1, 3, 9, 17, 27, 51, 81, 89, 149, 153, 267, 447, 459, 801, 1341, 1377, 1513, 2403, 2533, 4023, 4539, 7209, 7599, 12069, 13261, 13617, 22797, 39783, 40851, 68391, 119349, 122553, 205173, 225437, 358047, 676311, 1074141, 2028933, 6086799, 18260397]

約数ペア:

[(1, 18260397), (3, 6086799), (9, 2028933), (17, 1074141), (27, 676311), (51, 358047), (81, 225437), (89, 205173), (149, 122553), (153, 119349), (267, 68391), (447, 40851), (459, 39783), (801, 22797), (1341, 13617), (1377, 13261), (1513, 12069), (2403, 7599), (2533, 7209), (4023, 4539)]