21249996

素因数分解:

$2^2\times 3^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{197}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 50893920

約数和(自身を除く): 29643924

約数列:

[1, 2, 3, 4, 6, 12, 89, 101, 178, 197, 202, 267, 303, 356, 394, 404, 534, 591, 606, 788, 1068, 1182, 1212, 2364, 8989, 17533, 17978, 19897, 26967, 35066, 35956, 39794, 52599, 53934, 59691, 70132, 79588, 105198, 107868, 119382, 210396, 238764, 1770833, 3541666, 5312499, 7083332, 10624998, 21249996]

約数ペア:

[(1, 21249996), (2, 10624998), (3, 7083332), (4, 5312499), (6, 3541666), (12, 1770833), (89, 238764), (101, 210396), (178, 119382), (197, 107868), (202, 105198), (267, 79588), (303, 70132), (356, 59691), (394, 53934), (404, 52599), (534, 39794), (591, 35956), (606, 35066), (788, 26967), (1068, 19897), (1182, 17978), (1212, 17533), (2364, 8989)]