20731890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{691063}}^1$

素因数の和:691073

約数の個数: 16

約数和(自身を含む): 49756608

約数和(自身を除く): 29024718

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 691063, 1382126, 2073189, 3455315, 4146378, 6910630, 10365945, 20731890]

約数ペア:

[(1, 20731890), (2, 10365945), (3, 6910630), (5, 4146378), (6, 3455315), (10, 2073189), (15, 1382126), (30, 691063)]