21051026

素因数分解:

$2^1\times {\mathrm{23}}^2\times {\mathrm{101}}^1\times {\mathrm{197}}^1$

素因数の和:346

約数の個数: 24

約数和(自身を含む): 33505164

約数和(自身を除く): 12454138

約数列:

[1, 2, 23, 46, 101, 197, 202, 394, 529, 1058, 2323, 4531, 4646, 9062, 19897, 39794, 53429, 104213, 106858, 208426, 457631, 915262, 10525513, 21051026]

約数ペア:

[(1, 21051026), (2, 10525513), (23, 915262), (46, 457631), (101, 208426), (197, 106858), (202, 104213), (394, 53429), (529, 39794), (1058, 19897), (2323, 9062), (4531, 4646)]