20921878562

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{397}}^1\times {\mathrm{6779}}^1$

素因数の和:7227

約数の個数: 48

約数和(自身を含む): 35554645440

約数和(自身を除く): 14632766878

約数列:

[1, 2, 13, 23, 26, 46, 169, 299, 338, 397, 598, 794, 3887, 5161, 6779, 7774, 9131, 10322, 13558, 18262, 67093, 88127, 118703, 134186, 155917, 176254, 237406, 311834, 1145651, 1543139, 2026921, 2291302, 2691263, 3086278, 4053842, 5382526, 26349973, 34986419, 52699946, 61899049, 69972838, 123798098, 454823447, 804687637, 909646894, 1609375274, 10460939281, 20921878562]

約数ペア:

[(1, 20921878562), (2, 10460939281), (13, 1609375274), (23, 909646894), (26, 804687637), (46, 454823447), (169, 123798098), (299, 69972838), (338, 61899049), (397, 52699946), (598, 34986419), (794, 26349973), (3887, 5382526), (5161, 4053842), (6779, 3086278), (7774, 2691263), (9131, 2291302), (10322, 2026921), (13558, 1543139), (18262, 1145651), (67093, 311834), (88127, 237406), (118703, 176254), (134186, 155917)]