19378892

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{109}}^1\times {\mathrm{263}}^1$

素因数の和:402

約数の個数: 36

約数和(自身を含む): 37200240

約数和(自身を除く): 17821348

約数列:

[1, 2, 4, 13, 26, 52, 109, 169, 218, 263, 338, 436, 526, 676, 1052, 1417, 2834, 3419, 5668, 6838, 13676, 18421, 28667, 36842, 44447, 57334, 73684, 88894, 114668, 177788, 372671, 745342, 1490684, 4844723, 9689446, 19378892]

約数ペア:

[(1, 19378892), (2, 9689446), (4, 4844723), (13, 1490684), (26, 745342), (52, 372671), (109, 177788), (169, 114668), (218, 88894), (263, 73684), (338, 57334), (436, 44447), (526, 36842), (676, 28667), (1052, 18421), (1417, 13676), (2834, 6838), (3419, 5668)]