21902128

素因数分解:

$2^4\times {\mathrm{157}}^1\times {\mathrm{8719}}^1$

素因数の和:8884

約数の個数: 20

約数和(自身を含む): 42710560

約数和(自身を除く): 20808432

約数列:

[1, 2, 4, 8, 16, 157, 314, 628, 1256, 2512, 8719, 17438, 34876, 69752, 139504, 1368883, 2737766, 5475532, 10951064, 21902128]

約数ペア:

[(1, 21902128), (2, 10951064), (4, 5475532), (8, 2737766), (16, 1368883), (157, 139504), (314, 69752), (628, 34876), (1256, 17438), (2512, 8719)]