18795088

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{829}}^1$

素因数の和:959

約数の個数: 40

約数和(自身を含む): 39624200

約数和(自身を除く): 20829112

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 109, 208, 218, 436, 829, 872, 1417, 1658, 1744, 2834, 3316, 5668, 6632, 10777, 11336, 13264, 21554, 22672, 43108, 86216, 90361, 172432, 180722, 361444, 722888, 1174693, 1445776, 2349386, 4698772, 9397544, 18795088]

約数ペア:

[(1, 18795088), (2, 9397544), (4, 4698772), (8, 2349386), (13, 1445776), (16, 1174693), (26, 722888), (52, 361444), (104, 180722), (109, 172432), (208, 90361), (218, 86216), (436, 43108), (829, 22672), (872, 21554), (1417, 13264), (1658, 11336), (1744, 10777), (2834, 6632), (3316, 5668)]