19994295

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{881}}^1$

素因数の和:995

約数の個数: 32

約数和(自身を含む): 34292160

約数和(自身を除く): 14297865

約数列:

[1, 3, 5, 15, 17, 51, 85, 89, 255, 267, 445, 881, 1335, 1513, 2643, 4405, 4539, 7565, 13215, 14977, 22695, 44931, 74885, 78409, 224655, 235227, 392045, 1176135, 1332953, 3998859, 6664765, 19994295]

約数ペア:

[(1, 19994295), (3, 6664765), (5, 3998859), (15, 1332953), (17, 1176135), (51, 392045), (85, 235227), (89, 224655), (255, 78409), (267, 74885), (445, 44931), (881, 22695), (1335, 14977), (1513, 13215), (2643, 7565), (4405, 4539)]