28151193

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{521}}^1$

素因数の和:645

約数の個数: 32

約数和(自身を含む): 44900352

約数和(自身を除く): 16749159

約数列:

[1, 3, 7, 21, 31, 83, 93, 217, 249, 521, 581, 651, 1563, 1743, 2573, 3647, 7719, 10941, 16151, 18011, 43243, 48453, 54033, 113057, 129729, 302701, 339171, 908103, 1340533, 4021599, 9383731, 28151193]

約数ペア:

[(1, 28151193), (3, 9383731), (7, 4021599), (21, 1340533), (31, 908103), (83, 339171), (93, 302701), (217, 129729), (249, 113057), (521, 54033), (581, 48453), (651, 43243), (1563, 18011), (1743, 16151), (2573, 10941), (3647, 7719)]