19877438

素因数分解:

$2^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:201

約数の個数: 48

約数和(自身を含む): 36566640

約数和(自身を除く): 16689202

約数列:

[1, 2, 7, 14, 43, 49, 53, 86, 89, 98, 106, 178, 301, 371, 602, 623, 742, 1246, 2107, 2279, 2597, 3827, 4214, 4361, 4558, 4717, 5194, 7654, 8722, 9434, 15953, 26789, 31906, 33019, 53578, 66038, 111671, 187523, 202831, 223342, 231133, 375046, 405662, 462266, 1419817, 2839634, 9938719, 19877438]

約数ペア:

[(1, 19877438), (2, 9938719), (7, 2839634), (14, 1419817), (43, 462266), (49, 405662), (53, 375046), (86, 231133), (89, 223342), (98, 202831), (106, 187523), (178, 111671), (301, 66038), (371, 53578), (602, 33019), (623, 31906), (742, 26789), (1246, 15953), (2107, 9434), (2279, 8722), (2597, 7654), (3827, 5194), (4214, 4717), (4361, 4558)]