528870671

素因数分解:

$7^4\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:269

約数の個数: 40

約数和(自身を含む): 658526304

約数和(自身を除く): 129655633

約数列:

[1, 7, 23, 49, 61, 157, 161, 343, 427, 1099, 1127, 1403, 2401, 2989, 3611, 7693, 7889, 9577, 9821, 20923, 25277, 53851, 55223, 67039, 68747, 146461, 176939, 220271, 376957, 469273, 481229, 1238573, 1541897, 3284911, 3368603, 8670011, 10793279, 22994377, 75552953, 528870671]

約数ペア:

[(1, 528870671), (7, 75552953), (23, 22994377), (49, 10793279), (61, 8670011), (157, 3368603), (161, 3284911), (343, 1541897), (427, 1238573), (1099, 481229), (1127, 469273), (1403, 376957), (2401, 220271), (2989, 176939), (3611, 146461), (7693, 68747), (7889, 67039), (9577, 55223), (9821, 53851), (20923, 25277)]