19910430

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{221227}}^1$

素因数の和:221240

約数の個数: 24

約数和(自身を含む): 51767352

約数和(自身を除く): 31856922

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 221227, 442454, 663681, 1106135, 1327362, 1991043, 2212270, 3318405, 3982086, 6636810, 9955215, 19910430]

約数ペア:

[(1, 19910430), (2, 9955215), (3, 6636810), (5, 3982086), (6, 3318405), (9, 2212270), (10, 1991043), (15, 1327362), (18, 1106135), (30, 663681), (45, 442454), (90, 221227)]