21465370

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{419}}^1$

素因数の和:582

約数の個数: 32

約数和(自身を含む): 39916800

約数和(自身を除く): 18451430

約数列:

[1, 2, 5, 10, 47, 94, 109, 218, 235, 419, 470, 545, 838, 1090, 2095, 4190, 5123, 10246, 19693, 25615, 39386, 45671, 51230, 91342, 98465, 196930, 228355, 456710, 2146537, 4293074, 10732685, 21465370]

約数ペア:

[(1, 21465370), (2, 10732685), (5, 4293074), (10, 2146537), (47, 456710), (94, 228355), (109, 196930), (218, 98465), (235, 91342), (419, 51230), (470, 45671), (545, 39386), (838, 25615), (1090, 19693), (2095, 10246), (4190, 5123)]