20161255821

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{8017}}^1\times {\mathrm{3863}}^1$

素因数の和:11921

約数の個数: 32

約数和(自身を含む): 31725109248

約数和(自身を除く): 11563853427

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 3863, 8017, 11589, 24051, 27041, 56119, 81123, 119753, 168357, 248527, 359259, 745581, 838271, 1739689, 2514813, 5219067, 30969671, 92909013, 216787697, 650363091, 960059801, 2880179403, 6720418607, 20161255821]

約数ペア:

[(1, 20161255821), (3, 6720418607), (7, 2880179403), (21, 960059801), (31, 650363091), (93, 216787697), (217, 92909013), (651, 30969671), (3863, 5219067), (8017, 2514813), (11589, 1739689), (24051, 838271), (27041, 745581), (56119, 359259), (81123, 248527), (119753, 168357)]