19672471

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{347}}^1$

素因数の和:463

約数の個数: 24

約数和(自身を含む): 24993360

約数和(自身を除く): 5320889

約数列:

[1, 7, 13, 49, 89, 91, 347, 623, 637, 1157, 2429, 4361, 4511, 8099, 17003, 30883, 31577, 56693, 216181, 221039, 401479, 1513267, 2810353, 19672471]

約数ペア:

[(1, 19672471), (7, 2810353), (13, 1513267), (49, 401479), (89, 221039), (91, 216181), (347, 56693), (623, 31577), (637, 30883), (1157, 17003), (2429, 8099), (4361, 4511)]