219778916

素因数分解:

$2^2\times 7^2\times {\mathrm{53}}^1\times {\mathrm{21157}}^1$

素因数の和:21228

約数の個数: 36

約数和(自身を含む): 455870268

約数和(自身を除く): 236091352

約数列:

[1, 2, 4, 7, 14, 28, 49, 53, 98, 106, 196, 212, 371, 742, 1484, 2597, 5194, 10388, 21157, 42314, 84628, 148099, 296198, 592396, 1036693, 1121321, 2073386, 2242642, 4146772, 4485284, 7849247, 15698494, 31396988, 54944729, 109889458, 219778916]

約数ペア:

[(1, 219778916), (2, 109889458), (4, 54944729), (7, 31396988), (14, 15698494), (28, 7849247), (49, 4485284), (53, 4146772), (98, 2242642), (106, 2073386), (196, 1121321), (212, 1036693), (371, 592396), (742, 296198), (1484, 148099), (2597, 84628), (5194, 42314), (10388, 21157)]