21028056

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{17881}}^1$

素因数の和:17904

約数の個数: 48

約数和(自身を含む): 61156440

約数和(自身を除く): 40128384

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 49, 56, 84, 98, 147, 168, 196, 294, 392, 588, 1176, 17881, 35762, 53643, 71524, 107286, 125167, 143048, 214572, 250334, 375501, 429144, 500668, 751002, 876169, 1001336, 1502004, 1752338, 2628507, 3004008, 3504676, 5257014, 7009352, 10514028, 21028056]

約数ペア:

[(1, 21028056), (2, 10514028), (3, 7009352), (4, 5257014), (6, 3504676), (7, 3004008), (8, 2628507), (12, 1752338), (14, 1502004), (21, 1001336), (24, 876169), (28, 751002), (42, 500668), (49, 429144), (56, 375501), (84, 250334), (98, 214572), (147, 143048), (168, 125167), (196, 107286), (294, 71524), (392, 53643), (588, 35762), (1176, 17881)]