21374407

素因数分解:

${\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{251}}^1$

素因数の和:390

約数の個数: 16

約数和(自身を含む): 23030784

約数和(自身を除く): 1656377

約数列:

[1, 31, 41, 67, 251, 1271, 2077, 2747, 7781, 10291, 16817, 85157, 319021, 521327, 689497, 21374407]

約数ペア:

[(1, 21374407), (31, 689497), (41, 521327), (67, 319021), (251, 85157), (1271, 16817), (2077, 10291), (2747, 7781)]