18889556399

素因数分解:

$7^3\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{29123}}^1$

素因数の和:29236

約数の個数: 32

約数和(自身を含む): 23112806400

約数和(自身を除く): 4223250001

約数列:

[1, 7, 31, 49, 61, 217, 343, 427, 1519, 1891, 2989, 10633, 13237, 20923, 29123, 92659, 203861, 648613, 902813, 1427027, 1776503, 6319691, 9989189, 12435521, 44237837, 55071593, 87048647, 309664859, 385501151, 609340529, 2698508057, 18889556399]

約数ペア:

[(1, 18889556399), (7, 2698508057), (31, 609340529), (49, 385501151), (61, 309664859), (217, 87048647), (343, 55071593), (427, 44237837), (1519, 12435521), (1891, 9989189), (2989, 6319691), (10633, 1776503), (13237, 1427027), (20923, 902813), (29123, 648613), (92659, 203861)]