20153691

素因数分解:

$3^5\times {\mathrm{197}}^1\times {\mathrm{421}}^1$

素因数の和:633

約数の個数: 24

約数和(自身を含む): 30414384

約数和(自身を除く): 10260693

約数列:

[1, 3, 9, 27, 81, 197, 243, 421, 591, 1263, 1773, 3789, 5319, 11367, 15957, 34101, 47871, 82937, 102303, 248811, 746433, 2239299, 6717897, 20153691]

約数ペア:

[(1, 20153691), (3, 6717897), (9, 2239299), (27, 746433), (81, 248811), (197, 102303), (243, 82937), (421, 47871), (591, 34101), (1263, 15957), (1773, 11367), (3789, 5319)]