21523564

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{433}}^1$

素因数の和:514

約数の個数: 36

約数和(自身を含む): 41037304

約数和(自身を除く): 19513740

約数列:

[1, 2, 4, 17, 34, 43, 68, 86, 172, 289, 433, 578, 731, 866, 1156, 1462, 1732, 2924, 7361, 12427, 14722, 18619, 24854, 29444, 37238, 49708, 74476, 125137, 250274, 316523, 500548, 633046, 1266092, 5380891, 10761782, 21523564]

約数ペア:

[(1, 21523564), (2, 10761782), (4, 5380891), (17, 1266092), (34, 633046), (43, 500548), (68, 316523), (86, 250274), (172, 125137), (289, 74476), (433, 49708), (578, 37238), (731, 29444), (866, 24854), (1156, 18619), (1462, 14722), (1732, 12427), (2924, 7361)]