20998430

素因数分解:

$2^1\times 5^1\times {\mathrm{1297}}^1\times {\mathrm{1619}}^1$

素因数の和:2923

約数の個数: 16

約数和(自身を含む): 37849680

約数和(自身を除く): 16851250

約数列:

[1, 2, 5, 10, 1297, 1619, 2594, 3238, 6485, 8095, 12970, 16190, 2099843, 4199686, 10499215, 20998430]

約数ペア:

[(1, 20998430), (2, 10499215), (5, 4199686), (10, 2099843), (1297, 16190), (1619, 12970), (2594, 8095), (3238, 6485)]