21889210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{312703}}^1$

素因数の和:312717

約数の個数: 16

約数和(自身を含む): 45029376

約数和(自身を除く): 23140166

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 312703, 625406, 1563515, 2188921, 3127030, 4377842, 10944605, 21889210]

約数ペア:

[(1, 21889210), (2, 10944605), (5, 4377842), (7, 3127030), (10, 2188921), (14, 1563515), (35, 625406), (70, 312703)]