21820486

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{7211}}^1$

素因数の和:7319

約数の個数: 16

約数和(自身を含む): 35050320

約数和(自身を除く): 13229834

約数列:

[1, 2, 17, 34, 89, 178, 1513, 3026, 7211, 14422, 122587, 245174, 641779, 1283558, 10910243, 21820486]

約数ペア:

[(1, 21820486), (2, 10910243), (17, 1283558), (34, 641779), (89, 245174), (178, 122587), (1513, 14422), (3026, 7211)]