19431916

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{367}}^1$

素因数の和:470

約数の個数: 48

約数和(自身を含む): 40886272

約数和(自身を除く): 21454356

約数列:

[1, 2, 4, 7, 14, 28, 31, 61, 62, 122, 124, 217, 244, 367, 427, 434, 734, 854, 868, 1468, 1708, 1891, 2569, 3782, 5138, 7564, 10276, 11377, 13237, 22387, 22754, 26474, 44774, 45508, 52948, 79639, 89548, 156709, 159278, 313418, 318556, 626836, 693997, 1387994, 2775988, 4857979, 9715958, 19431916]

約数ペア:

[(1, 19431916), (2, 9715958), (4, 4857979), (7, 2775988), (14, 1387994), (28, 693997), (31, 626836), (61, 318556), (62, 313418), (122, 159278), (124, 156709), (217, 89548), (244, 79639), (367, 52948), (427, 45508), (434, 44774), (734, 26474), (854, 22754), (868, 22387), (1468, 13237), (1708, 11377), (1891, 10276), (2569, 7564), (3782, 5138)]