490640577

素因数分解:

$3^1\times 7^3\times {\mathrm{23}}^1\times {\mathrm{20731}}^1$

素因数の和:20778

約数の個数: 32

約数和(自身を含む): 796108800

約数和(自身を除く): 305468223

約数列:

[1, 3, 7, 21, 23, 49, 69, 147, 161, 343, 483, 1029, 1127, 3381, 7889, 20731, 23667, 62193, 145117, 435351, 476813, 1015819, 1430439, 3047457, 3337691, 7110733, 10013073, 21332199, 23363837, 70091511, 163546859, 490640577]

約数ペア:

[(1, 490640577), (3, 163546859), (7, 70091511), (21, 23363837), (23, 21332199), (49, 10013073), (69, 7110733), (147, 3337691), (161, 3047457), (343, 1430439), (483, 1015819), (1029, 476813), (1127, 435351), (3381, 145117), (7889, 62193), (20731, 23667)]