21055216

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{14461}}^1$

素因数の和:14489

約数の個数: 40

約数和(自身を含む): 50212064

約数和(自身を除く): 29156848

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 14461, 28922, 57844, 101227, 115688, 187993, 202454, 231376, 375986, 404908, 751972, 809816, 1315951, 1503944, 1619632, 2631902, 3007888, 5263804, 10527608, 21055216]

約数ペア:

[(1, 21055216), (2, 10527608), (4, 5263804), (7, 3007888), (8, 2631902), (13, 1619632), (14, 1503944), (16, 1315951), (26, 809816), (28, 751972), (52, 404908), (56, 375986), (91, 231376), (104, 202454), (112, 187993), (182, 115688), (208, 101227), (364, 57844), (728, 28922), (1456, 14461)]