21519092

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{293}}^1$

素因数の和:408

約数の個数: 48

約数和(自身を含む): 44913792

約数和(自身を除く): 23394700

約数列:

[1, 2, 4, 7, 14, 28, 43, 61, 86, 122, 172, 244, 293, 301, 427, 586, 602, 854, 1172, 1204, 1708, 2051, 2623, 4102, 5246, 8204, 10492, 12599, 17873, 18361, 25198, 35746, 36722, 50396, 71492, 73444, 88193, 125111, 176386, 250222, 352772, 500444, 768539, 1537078, 3074156, 5379773, 10759546, 21519092]

約数ペア:

[(1, 21519092), (2, 10759546), (4, 5379773), (7, 3074156), (14, 1537078), (28, 768539), (43, 500444), (61, 352772), (86, 250222), (122, 176386), (172, 125111), (244, 88193), (293, 73444), (301, 71492), (427, 50396), (586, 36722), (602, 35746), (854, 25198), (1172, 18361), (1204, 17873), (1708, 12599), (2051, 10492), (2623, 8204), (4102, 5246)]