18883985

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{251}}^1\times {\mathrm{367}}^1$

素因数の和:664

約数の個数: 16

約数和(自身を含む): 23369472

約数和(自身を除く): 4485487

約数列:

[1, 5, 41, 205, 251, 367, 1255, 1835, 10291, 15047, 51455, 75235, 92117, 460585, 3776797, 18883985]

約数ペア:

[(1, 18883985), (5, 3776797), (41, 460585), (205, 92117), (251, 75235), (367, 51455), (1255, 15047), (1835, 10291)]