20958496

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{607}}^1$

素因数の和:713

約数の個数: 48

約数和(自身を含む): 45045504

約数和(自身を除く): 24087008

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 83, 104, 166, 208, 332, 416, 607, 664, 1079, 1214, 1328, 2158, 2428, 2656, 4316, 4856, 7891, 8632, 9712, 15782, 17264, 19424, 31564, 34528, 50381, 63128, 100762, 126256, 201524, 252512, 403048, 654953, 806096, 1309906, 1612192, 2619812, 5239624, 10479248, 20958496]

約数ペア:

[(1, 20958496), (2, 10479248), (4, 5239624), (8, 2619812), (13, 1612192), (16, 1309906), (26, 806096), (32, 654953), (52, 403048), (83, 252512), (104, 201524), (166, 126256), (208, 100762), (332, 63128), (416, 50381), (607, 34528), (664, 31564), (1079, 19424), (1214, 17264), (1328, 15782), (2158, 9712), (2428, 8632), (2656, 7891), (4316, 4856)]