19651664

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{17299}}^1$

素因数の和:17378

約数の個数: 20

約数和(自身を含む): 38613600

約数和(自身を除く): 18961936

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 17299, 34598, 69196, 138392, 276784, 1228229, 2456458, 4912916, 9825832, 19651664]

約数ペア:

[(1, 19651664), (2, 9825832), (4, 4912916), (8, 2456458), (16, 1228229), (71, 276784), (142, 138392), (284, 69196), (568, 34598), (1136, 17299)]