21130145743

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{367}}^1\times {\mathrm{1259}}^1$

素因数の和:1819

約数の個数: 32

約数和(自身を含む): 24927436800

約数和(自身を除く): 3797291057

約数列:

[1, 7, 47, 139, 329, 367, 973, 1259, 2569, 6533, 8813, 17249, 45731, 51013, 59173, 120743, 175001, 357091, 414211, 462053, 1225007, 2397611, 3234371, 8225047, 16783277, 21716491, 57575329, 64225367, 152015437, 449577569, 3018592249, 21130145743]

約数ペア:

[(1, 21130145743), (7, 3018592249), (47, 449577569), (139, 152015437), (329, 64225367), (367, 57575329), (973, 21716491), (1259, 16783277), (2569, 8225047), (6533, 3234371), (8813, 2397611), (17249, 1225007), (45731, 462053), (51013, 414211), (59173, 357091), (120743, 175001)]