19597328

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{661}}^1$

素因数の和:795

約数の個数: 40

約数和(自身を含む): 40633560

約数和(自身を除く): 21036232

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 109, 136, 218, 272, 436, 661, 872, 1322, 1744, 1853, 2644, 3706, 5288, 7412, 10576, 11237, 14824, 22474, 29648, 44948, 72049, 89896, 144098, 179792, 288196, 576392, 1152784, 1224833, 2449666, 4899332, 9798664, 19597328]

約数ペア:

[(1, 19597328), (2, 9798664), (4, 4899332), (8, 2449666), (16, 1224833), (17, 1152784), (34, 576392), (68, 288196), (109, 179792), (136, 144098), (218, 89896), (272, 72049), (436, 44948), (661, 29648), (872, 22474), (1322, 14824), (1744, 11237), (1853, 10576), (2644, 7412), (3706, 5288)]