19789328

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1069}}^1$

素因数の和:1179

約数の個数: 40

約数和(自身を含む): 41794200

約数和(自身を除く): 22004872

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 89, 104, 178, 208, 356, 712, 1069, 1157, 1424, 2138, 2314, 4276, 4628, 8552, 9256, 13897, 17104, 18512, 27794, 55588, 95141, 111176, 190282, 222352, 380564, 761128, 1236833, 1522256, 2473666, 4947332, 9894664, 19789328]

約数ペア:

[(1, 19789328), (2, 9894664), (4, 4947332), (8, 2473666), (13, 1522256), (16, 1236833), (26, 761128), (52, 380564), (89, 222352), (104, 190282), (178, 111176), (208, 95141), (356, 55588), (712, 27794), (1069, 18512), (1157, 17104), (1424, 13897), (2138, 9256), (2314, 8552), (4276, 4628)]