19908810

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{221209}}^1$

素因数の和:221222

約数の個数: 24

約数和(自身を含む): 51763140

約数和(自身を除く): 31854330

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 221209, 442418, 663627, 1106045, 1327254, 1990881, 2212090, 3318135, 3981762, 6636270, 9954405, 19908810]

約数ペア:

[(1, 19908810), (2, 9954405), (3, 6636270), (5, 3981762), (6, 3318135), (9, 2212090), (10, 1990881), (15, 1327254), (18, 1106045), (30, 663627), (45, 442418), (90, 221209)]