21243352

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{107}}^1$

素因数の和:232

約数の個数: 64

約数和(自身を含む): 45722880

約数和(自身を除く): 24479528

約数列:

[1, 2, 4, 8, 13, 23, 26, 46, 52, 83, 92, 104, 107, 166, 184, 214, 299, 332, 428, 598, 664, 856, 1079, 1196, 1391, 1909, 2158, 2392, 2461, 2782, 3818, 4316, 4922, 5564, 7636, 8632, 8881, 9844, 11128, 15272, 17762, 19688, 24817, 31993, 35524, 49634, 63986, 71048, 99268, 115453, 127972, 198536, 204263, 230906, 255944, 408526, 461812, 817052, 923624, 1634104, 2655419, 5310838, 10621676, 21243352]

約数ペア:

[(1, 21243352), (2, 10621676), (4, 5310838), (8, 2655419), (13, 1634104), (23, 923624), (26, 817052), (46, 461812), (52, 408526), (83, 255944), (92, 230906), (104, 204263), (107, 198536), (166, 127972), (184, 115453), (214, 99268), (299, 71048), (332, 63986), (428, 49634), (598, 35524), (664, 31993), (856, 24817), (1079, 19688), (1196, 17762), (1391, 15272), (1909, 11128), (2158, 9844), (2392, 8881), (2461, 8632), (2782, 7636), (3818, 5564), (4316, 4922)]