21018248

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{84751}}^1$

素因数の和:84788

約数の個数: 16

約数和(自身を含む): 40680960

約数和(自身を除く): 19662712

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 84751, 169502, 339004, 678008, 2627281, 5254562, 10509124, 21018248]

約数ペア:

[(1, 21018248), (2, 10509124), (4, 5254562), (8, 2627281), (31, 678008), (62, 339004), (124, 169502), (248, 84751)]