21221211232

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{761381}}^1$

素因数の和:761471

約数の個数: 48

約数和(自身を含む): 45664646832

約数和(自身を除く): 24443435600

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 67, 104, 134, 208, 268, 416, 536, 871, 1072, 1742, 2144, 3484, 6968, 13936, 27872, 761381, 1522762, 3045524, 6091048, 9897953, 12182096, 19795906, 24364192, 39591812, 51012527, 79183624, 102025054, 158367248, 204050108, 316734496, 408100216, 663162851, 816200432, 1326325702, 1632400864, 2652651404, 5305302808, 10610605616, 21221211232]

約数ペア:

[(1, 21221211232), (2, 10610605616), (4, 5305302808), (8, 2652651404), (13, 1632400864), (16, 1326325702), (26, 816200432), (32, 663162851), (52, 408100216), (67, 316734496), (104, 204050108), (134, 158367248), (208, 102025054), (268, 79183624), (416, 51012527), (536, 39591812), (871, 24364192), (1072, 19795906), (1742, 12182096), (2144, 9897953), (3484, 6091048), (6968, 3045524), (13936, 1522762), (27872, 761381)]