18838424

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{593}}^1$

素因数の和:648

約数の個数: 48

約数和(自身を含む): 40736520

約数和(自身を除く): 21898096

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 361, 418, 593, 722, 836, 1186, 1444, 1672, 2372, 2888, 3971, 4744, 6523, 7942, 11267, 13046, 15884, 22534, 26092, 31768, 45068, 52184, 90136, 123937, 214073, 247874, 428146, 495748, 856292, 991496, 1712584, 2354803, 4709606, 9419212, 18838424]

約数ペア:

[(1, 18838424), (2, 9419212), (4, 4709606), (8, 2354803), (11, 1712584), (19, 991496), (22, 856292), (38, 495748), (44, 428146), (76, 247874), (88, 214073), (152, 123937), (209, 90136), (361, 52184), (418, 45068), (593, 31768), (722, 26092), (836, 22534), (1186, 15884), (1444, 13046), (1672, 11267), (2372, 7942), (2888, 6523), (3971, 4744)]