18910244

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{4079}}^1$

素因数の和:4163

約数の個数: 24

約数和(自身を含む): 35414400

約数和(自身を除く): 16504156

約数列:

[1, 2, 4, 19, 38, 61, 76, 122, 244, 1159, 2318, 4079, 4636, 8158, 16316, 77501, 155002, 248819, 310004, 497638, 995276, 4727561, 9455122, 18910244]

約数ペア:

[(1, 18910244), (2, 9455122), (4, 4727561), (19, 995276), (38, 497638), (61, 310004), (76, 248819), (122, 155002), (244, 77501), (1159, 16316), (2318, 8158), (4079, 4636)]