19500968

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{449}}^1$

素因数の和:605

約数の個数: 32

約数和(自身を含む): 37665000

約数和(自身を除く): 18164032

約数列:

[1, 2, 4, 8, 61, 89, 122, 178, 244, 356, 449, 488, 712, 898, 1796, 3592, 5429, 10858, 21716, 27389, 39961, 43432, 54778, 79922, 109556, 159844, 219112, 319688, 2437621, 4875242, 9750484, 19500968]

約数ペア:

[(1, 19500968), (2, 9750484), (4, 4875242), (8, 2437621), (61, 319688), (89, 219112), (122, 159844), (178, 109556), (244, 79922), (356, 54778), (449, 43432), (488, 39961), (712, 27389), (898, 21716), (1796, 10858), (3592, 5429)]