20605263

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1153}}^1$

素因数の和:1223

約数の個数: 32

約数和(自身を含む): 33678336

約数和(自身を除く): 13073073

約数列:

[1, 3, 7, 21, 23, 37, 69, 111, 161, 259, 483, 777, 851, 1153, 2553, 3459, 5957, 8071, 17871, 24213, 26519, 42661, 79557, 127983, 185633, 298627, 556899, 895881, 981203, 2943609, 6868421, 20605263]

約数ペア:

[(1, 20605263), (3, 6868421), (7, 2943609), (21, 981203), (23, 895881), (37, 556899), (69, 298627), (111, 185633), (161, 127983), (259, 79557), (483, 42661), (777, 26519), (851, 24213), (1153, 17871), (2553, 8071), (3459, 5957)]